NeoEGM.com » Programming http://www.neoegm.com Knowledge is inside Mon, 08 Jul 2024 05:38:01 +0000 en-US hourly 1 https://wordpress.org/?v=4.2.39 Intelligent Escaper-Unescaper – Online Unescape and Escape Tool (with URL Parameter Parsing and more) http://www.neoegm.com/tech/online-tools/intelligent-escaper-unescaper-online-unescape-and-escape-tool-with-url-parameter-parsing-and-more/ http://www.neoegm.com/tech/online-tools/intelligent-escaper-unescaper-online-unescape-and-escape-tool-with-url-parameter-parsing-and-more/#comments Mon, 24 Aug 2009 05:00:18 +0000 http://www.neoegm.com/?p=1078 Related posts:
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]]> With this online tool, you can easily escape and unescape strings (among other powerful things, explained below)…

If you want to bookmark it, you may prefer this shorter address: http://www.neoegm.com/software/intelligent-escaper-unescaper/. [Press the right mouse button and select the option offered by your browser to add it to your bookmarks/favorites.]


As you can see, there are several features… I’ll explain them one by one…

Escape

Calls the escape Javascript function, which encodes the special characters (with some exceptions).

Example:

Hello, this is a test
Hello%2C%20this%20is%20a%20test

Escape (Forced)

Encodes every character, no matter whether it is special or not. Ideal to make the strings not easily readable.

Example:

Hello, this is a test
%48%65%6C%6C%6F%2C%20%74%68%69%73%20%69%73%20%61%20%74%65%73%74

Unescape

Calls the unescape Javascript function, which decodes every encoded character. (The ones with the form %XX or %uXXXX).

Example 1:

Hello%2C%20this%20is%20a%20test
Hello, this is a test

Example 2:

%48%65%6C%6C%6F%2C%20%74%68%69%73%20%69%73%20%61%20%74%65%73%74
Hello, this is a test

Escape URL

Encodes the special characters, but respecting the URL syntax. It’s not the same as the “encodeURI” option, since this latter one calls the encodeURI Javascript function, which does not encode the following characters: 

; , / ? : @ & = + $ - _ . ! ~ * ' ( ) #

While this one just does not encode them where corresponding. Parameters, anchors and Unicode characters are supported…

Example:

http://www.example.com:84/This is my file named niño: the named place.doc
http://www.example.com:84/This%20is%20my%20file%20named%20ni%F1o%3A%20the%20named%20place.doc

Escape URL (Forced)

Similar to “Escape URL”, but forcing the normal character encoding as much as possible (without including the host). Ideal to make URLs hard to read at first glance.

Example:

http://www.example.com:84/This is my file named niño: the named place.doc
http://www.example.com:84/%54%68%69%73%20%69%73%20%6D%79%20%66%69%6C%65%20%6E%61%6D%65%64%20%6E%69%F1%6F%3A%20%74%68%65%20%6E%61%6D%65%64%20%70%6C%61%63%65%2E%64%6F%63

Escape URL (Forced + Host)

Similar to “Escape URL”, but forcing the normal character encoding as much as possible (host included). Ideal to make URLs hard to read at first glance.

Note: this syntax is not supported in some browsers.

Supported browsers: Internet Explorer, Google Chrome.
Unsupported browsers: Firefox, Lynx.

In the case of Firefox, the string gets decoded correctly (if the URL is valid), but it doesn’t open, you have to open it again with the decoded address (selecting it and pressing Enter). If the host doesn’t contain any dot, “www.” y “.com” al added automatically.

If you have support information for any other browser, please tell me and I’ll add it.

Ejemplo:

http://www.example.com:84/This is my file named niño: the named place.doc
http://%77%77%77.%65%78%61%6D%70%6C%65.%63%6F%6D:84/%54%68%69%73%20%69%73%20%6D%79%20%66%69%6C%65%20%6E%61%6D%65%64%20%6E%69%F1%6F%3A%20%74%68%65%20%6E%61%6D%65%64%20%70%6C%61%63%65%2E%64%6F%63

Intelligent Escape

This function is an intelligent version of “Escape”. It encodes the corresponding characters, but without re-encoding the already encoded data.

Example:

Partially%22%20encoded%20string. And I added this part.
Partially%22%20encoded%20string.%20And%20I%20added%20this%20part.

If we just pressed “Escape”, we would have received:

Partially%2522%2520encoded%2520string.%20And%20I%20added%20this%20part.

Intelligent Unescape

Calls the unescape Javascript function repeatedly until there’s nothing remaining to be decoded. Useful when a string was encoded several times.

Example:

%25%34%38%25%36%35%25%36%43%25%36%43%25%36%46
Hello

If we just pressed “Unescape”, we would have received:

%48%65%6C%6C%6F

Parse URL Parameters

It breaks a URL into its corresponding parameters. The anchor is left without unescaping in the end.

Example:

http://www.example.com:81/path/path/hello.php?a=3&b=Good%20Morning&c=El%20Ni%F1o#test-anchor
http://www.example.com:81/path/path/hello.php

a=3
b=Good Morning
c=El Niño

#test-anchor

Make URL with Parameters

Reconstructs a URL based in the specified URL + parameters + anchor.

Example:

http://www.example.com:81/path/path/hello.php

a=3
b=Good Morning
c=El Niño

#test-anchor

http://www.example.com:81/path/path/hello.php?a=3&b=Good%20Morning&c=El%20Ni%F1o#test-anchor

Escape +

It encodes the + characters. They are not escaped by the other functions, with the exception of “Escape (Forced)”.

Escape #

It encodes the # characters. They are not escaped by the other functions, with the exception of “Escape (Forced)”.

Escape: <char>

It encodes the characters specified in the input box.

encodeURI

Calls the encodeURI Javascript function.

decodeURI

Calls the decodeURI Javascript function.

encodeURIComponent

Calls the encodeURIComponent Javascript function.

decodeURIComponent

Calls the decodeURIComponent Javascript function.



GNU GPL v3 Intelligent Escaper-Unescaper is licensed under the GNU GPL v3 (attached)…


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]]> http://www.neoegm.com/tech/online-tools/intelligent-escaper-unescaper-online-unescape-and-escape-tool-with-url-parameter-parsing-and-more/feed/ 0 How to compile C++ console programs which support special characters (ISO-8859-1) http://www.neoegm.com/tech/programming/c-cpp/how-to-compile-c-console-programs-which-support-special-characters-iso-8859-1/ http://www.neoegm.com/tech/programming/c-cpp/how-to-compile-c-console-programs-which-support-special-characters-iso-8859-1/#comments Fri, 21 Aug 2009 05:00:24 +0000 http://www.neoegm.com/?p=1000 Related posts:
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]]> The GCC compiler (or G++) does not always work with our source code files just as we would expect it to. This specially happens when there are special characters in our files (the ones with ASCII codes higher than 127).

Take the following program as a sample (the strings are written in spanish):

#include <iostream>
using std::cout;
using std::cin;
using std::endl;

#include <string>
using std::string;

int main()
{
	string sDummy;

	cout << "Por favor ingrese su contraseña: ";
	cin >> sDummy;

	cout << endl;
	cout << "Su contraseña es inválida, por favor verifíquela e inténtelo nuevamente. Ha ingresado: '" << sDummy << "'." << endl;

	return 0;
}

Let’s compile it… 

g++ TestChars.cpp -o TestChars.exe

And execute it… We can easily imagine the output… But… This is what we get:

Por favor ingrese su contrase±a: contraseña

Su contrase±a es invßlida, por favor veriffquela e intTntelo nuevamente. Ha ingresado: 'contraseña'.

Notice that the string that we’ve just typed (“contraseña”) gets correctly printed, while the ones hard-coded in the program don’t.

So… What can we do?

Well, there are some compiler command line parameters ready to help us… They are the finput-charset and fexec-charset command line arguments…

Both take as additional parameter a charset name from the ones supported by the compiler…

For the interested ones, here is the output of the charsets supported by the library that GCC uses to make the conversion… They may not be the same on every system…

# iconv --list
The following list contain all the coded character sets known.  This does not necessarily mean that all combinations of these names can be used for the FROM and TO command line parameters.  One coded character set can be listed with several different names (aliases).

437, 500, 500V1, 850, 851, 852, 855, 856, 857, 860, 861, 862, 863, 864, 865, 866, 866NAV, 869, 874, 904, 1026, 1046, 1047, 8859_1, 8859_2, 8859_3, 8859_4, 8859_5, 8859_6, 8859_7, 8859_8, 8859_9, 10646-1:1993, 10646-1:1993/UCS4, ANSI_X3.4-1968, ANSI_X3.4-1986, ANSI_X3.4, ANSI_X3.110-1983, ANSI_X3.110, ARABIC, ARABIC7, ARMSCII-8, ASCII, ASMO-708, ASMO_449, BALTIC, BIG-5, BIG-FIVE, BIG5-HKSCS, BIG5, BIG5HKSCS, BIGFIVE, BRF, BS_4730, CA, CN-BIG5, CN-GB, CN, CP-AR, CP-GR, CP-HU, CP037, CP038, CP273, CP274, CP275, CP278, CP280, CP281, CP282, CP284, CP285, CP290, CP297, CP367, CP420, CP423, CP424, CP437, CP500, CP737, CP775, CP803, CP813, CP819, CP850, CP851, CP852, CP855, CP856, CP857, CP860, CP861, CP862, CP863, CP864, CP865, CP866, CP866NAV, CP868, CP869, CP870, CP871, CP874, CP875, CP880, CP891, CP901, CP902, CP903, CP904, CP905, CP912, CP915, CP916, CP918, CP920, CP921, CP922, CP930, CP932, CP933, CP935, CP936, CP937, CP939, CP949, CP950, CP1004, CP1008, CP1025, CP1026, CP1046, CP1047, CP1070, CP1079, CP1081, CP1084, CP1089, CP1097, CP1112, CP1122, CP1123, CP1124, CP1125, CP1129, CP1130, CP1132, CP1133, CP1137, CP1140, CP1141, CP1142, CP1143, CP1144, CP1145, CP1146, CP1147, CP1148, CP1149, CP1153, CP1154, CP1155, CP1156, CP1157, CP1158, CP1160, CP1161, CP1162, CP1163, CP1164, CP1166, CP1167, CP1250, CP1251, CP1252, CP1253, CP1254, CP1255, CP1256, CP1257, CP1258, CP1282, CP1361, CP1364, CP1371, CP1388, CP1390, CP1399, CP4517, CP4899, CP4909, CP4971, CP5347, CP9030, CP9066, CP9448, CP10007, CP12712, CP16804, CPIBM861, CSA7-1, CSA7-2, CSASCII, CSA_T500-1983, CSA_T500, CSA_Z243.4-1985-1, CSA_Z243.4-1985-2, CSA_Z243.419851, CSA_Z243.419852, CSDECMCS, CSEBCDICATDE, CSEBCDICATDEA, CSEBCDICCAFR, CSEBCDICDKNO, CSEBCDICDKNOA, CSEBCDICES, CSEBCDICESA, CSEBCDICESS, CSEBCDICFISE, CSEBCDICFISEA, CSEBCDICFR, CSEBCDICIT, CSEBCDICPT, CSEBCDICUK, CSEBCDICUS, CSEUCKR, CSEUCPKDFMTJAPANESE, CSGB2312, CSHPROMAN8, CSIBM037, CSIBM038, CSIBM273, CSIBM274, CSIBM275, CSIBM277, CSIBM278, CSIBM280, CSIBM281, CSIBM284, CSIBM285, CSIBM290, CSIBM297, CSIBM420, CSIBM423, CSIBM424, CSIBM500, CSIBM803, CSIBM851, CSIBM855, CSIBM856, CSIBM857, CSIBM860, CSIBM863, CSIBM864, CSIBM865, CSIBM866, CSIBM868, CSIBM869, CSIBM870, CSIBM871, CSIBM880, CSIBM891, CSIBM901, CSIBM902, CSIBM903, CSIBM904, CSIBM905, CSIBM918, CSIBM921, CSIBM922, CSIBM930, CSIBM932, CSIBM933, CSIBM935, CSIBM937, CSIBM939, CSIBM943, CSIBM1008, CSIBM1025, CSIBM1026, CSIBM1097, CSIBM1112, CSIBM1122, CSIBM1123, CSIBM1124, CSIBM1129, CSIBM1130, CSIBM1132, CSIBM1133, CSIBM1137, CSIBM1140, CSIBM1141, CSIBM1142, CSIBM1143, CSIBM1144, CSIBM1145, CSIBM1146, CSIBM1147, CSIBM1148, CSIBM1149, CSIBM1153, CSIBM1154, CSIBM1155, CSIBM1156, CSIBM1157, CSIBM1158, CSIBM1160, CSIBM1161, CSIBM1163, CSIBM1164, CSIBM1166, CSIBM1167, CSIBM1364, CSIBM1371, CSIBM1388, CSIBM1390, CSIBM1399, CSIBM4517, CSIBM4899, CSIBM4909, CSIBM4971, CSIBM5347, CSIBM9030, CSIBM9066, CSIBM9448, CSIBM12712, CSIBM16804, CSIBM11621162, CSISO4UNITEDKINGDOM, CSISO10SWEDISH, CSISO11SWEDISHFORNAMES, CSISO14JISC6220RO, CSISO15ITALIAN, CSISO16PORTUGESE, CSISO17SPANISH, CSISO18GREEK7OLD, CSISO19LATINGREEK, CSISO21GERMAN, CSISO25FRENCH, CSISO27LATINGREEK1, CSISO49INIS, CSISO50INIS8, CSISO51INISCYRILLIC, CSISO58GB1988, CSISO60DANISHNORWEGIAN, CSISO60NORWEGIAN1, CSISO61NORWEGIAN2, CSISO69FRENCH, CSISO84PORTUGUESE2, CSISO85SPANISH2, CSISO86HUNGARIAN, CSISO88GREEK7, CSISO89ASMO449, CSISO90, CSISO92JISC62991984B, CSISO99NAPLPS, CSISO103T618BIT, CSISO111ECMACYRILLIC, CSISO121CANADIAN1, CSISO122CANADIAN2, CSISO139CSN369103, CSISO141JUSIB1002, CSISO143IECP271, CSISO150, CSISO150GREEKCCITT, CSISO151CUBA, CSISO153GOST1976874, CSISO646DANISH, CSISO2022CN, CSISO2022JP, CSISO2022JP2, CSISO2022KR, CSISO2033, CSISO5427CYRILLIC, CSISO5427CYRILLIC1981, CSISO5428GREEK, CSISO10367BOX, CSISOLATIN1, CSISOLATIN2, CSISOLATIN3, CSISOLATIN4, CSISOLATIN5, CSISOLATIN6, CSISOLATINARABIC, CSISOLATINCYRILLIC, CSISOLATINGREEK, CSISOLATINHEBREW, CSKOI8R, CSKSC5636, CSMACINTOSH, CSNATSDANO, CSNATSSEFI, CSN_369103, CSPC8CODEPAGE437, CSPC775BALTIC, CSPC850MULTILINGUAL, CSPC862LATINHEBREW, CSPCP852, CSSHIFTJIS, CSUCS4, CSUNICODE, CSWINDOWS31J, CUBA, CWI-2, CWI, CYRILLIC, DE, DEC-MCS, DEC, DECMCS, DIN_66003, DK, DS2089, DS_2089, E13B, EBCDIC-AT-DE-A, EBCDIC-AT-DE, EBCDIC-BE, EBCDIC-BR, EBCDIC-CA-FR, EBCDIC-CP-AR1, EBCDIC-CP-AR2, EBCDIC-CP-BE, EBCDIC-CP-CA, EBCDIC-CP-CH, EBCDIC-CP-DK, EBCDIC-CP-ES, EBCDIC-CP-FI, EBCDIC-CP-FR, EBCDIC-CP-GB, EBCDIC-CP-GR, EBCDIC-CP-HE, EBCDIC-CP-IS, EBCDIC-CP-IT, EBCDIC-CP-NL, EBCDIC-CP-NO, EBCDIC-CP-ROECE, EBCDIC-CP-SE, EBCDIC-CP-TR, EBCDIC-CP-US, EBCDIC-CP-WT, EBCDIC-CP-YU, EBCDIC-CYRILLIC, EBCDIC-DK-NO-A, EBCDIC-DK-NO, EBCDIC-ES-A, EBCDIC-ES-S, EBCDIC-ES, EBCDIC-FI-SE-A, EBCDIC-FI-SE, EBCDIC-FR, EBCDIC-GREEK, EBCDIC-INT, EBCDIC-INT1, EBCDIC-IS-FRISS, EBCDIC-IT, EBCDIC-JP-E, EBCDIC-JP-KANA, EBCDIC-PT, EBCDIC-UK, EBCDIC-US, EBCDICATDE, EBCDICATDEA, EBCDICCAFR, EBCDICDKNO, EBCDICDKNOA, EBCDICES, EBCDICESA, EBCDICESS, EBCDICFISE, EBCDICFISEA, EBCDICFR, EBCDICISFRISS, EBCDICIT, EBCDICPT, EBCDICUK, EBCDICUS, ECMA-114, ECMA-118, ECMA-128, ECMA-CYRILLIC, ECMACYRILLIC, ELOT_928, ES, ES2, EUC-CN, EUC-JISX0213, EUC-JP-MS, EUC-JP, EUC-KR, EUC-TW, EUCCN, EUCJP-MS, EUCJP-OPEN, EUCJP-WIN, EUCJP, EUCKR, EUCTW, FI, FR, GB, GB2312, GB13000, GB18030, GBK, GB_1988-80, GB_198880, GEORGIAN-ACADEMY, GEORGIAN-PS, GOST_19768-74, GOST_19768, GOST_1976874, GREEK-CCITT, GREEK, GREEK7-OLD, GREEK7, GREEK7OLD, GREEK8, GREEKCCITT, HEBREW, HP-GREEK8, HP-ROMAN8, HP-ROMAN9, HP-THAI8, HP-TURKISH8, HPGREEK8, HPROMAN8, HPROMAN9, HPTHAI8, HPTURKISH8, HU, IBM-803, IBM-856, IBM-901, IBM-902, IBM-921, IBM-922, IBM-930, IBM-932, IBM-933, IBM-935, IBM-937, IBM-939, IBM-943, IBM-1008, IBM-1025, IBM-1046, IBM-1047, IBM-1097, IBM-1112, IBM-1122, IBM-1123, IBM-1124, IBM-1129, IBM-1130, IBM-1132, IBM-1133, IBM-1137, IBM-1140, IBM-1141, IBM-1142, IBM-1143, IBM-1144, IBM-1145, IBM-1146, IBM-1147, IBM-1148, IBM-1149, IBM-1153, IBM-1154, IBM-1155, IBM-1156, IBM-1157, IBM-1158, IBM-1160, IBM-1161, IBM-1162, IBM-1163, IBM-1164, IBM-1166, IBM-1167, IBM-1364, IBM-1371, IBM-1388, IBM-1390, IBM-1399, IBM-4517, IBM-4899, IBM-4909, IBM-4971, IBM-5347, IBM-9030, IBM-9066, IBM-9448, IBM-12712, IBM-16804, IBM037, IBM038, IBM256, IBM273, IBM274, IBM275, IBM277, IBM278, IBM280, IBM281, IBM284, IBM285, IBM290, IBM297, IBM367, IBM420, IBM423, IBM424, IBM437, IBM500, IBM775, IBM803, IBM813, IBM819, IBM848, IBM850, IBM851, IBM852, IBM855, IBM856, IBM857, IBM860, IBM861, IBM862, IBM863, IBM864, IBM865, IBM866, IBM866NAV, IBM868, IBM869, IBM870, IBM871, IBM874, IBM875, IBM880, IBM891, IBM901, IBM902, IBM903, IBM904, IBM905, IBM912, IBM915, IBM916, IBM918, IBM920, IBM921, IBM922, IBM930, IBM932, IBM933, IBM935, IBM937, IBM939, IBM943, IBM1004, IBM1008, IBM1025, IBM1026, IBM1046, IBM1047, IBM1089, IBM1097, IBM1112, IBM1122, IBM1123, IBM1124, IBM1129, IBM1130, IBM1132, IBM1133, IBM1137, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144, IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1153, IBM1154, IBM1155, IBM1156, IBM1157, IBM1158, IBM1160, IBM1161, IBM1162, IBM1163, IBM1164, IBM1166, IBM1167, IBM1364, IBM1371, IBM1388, IBM1390, IBM1399, IBM4517, IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712, IBM16804, IEC_P27-1, IEC_P271, INIS-8, INIS-CYRILLIC, INIS, INIS8, INISCYRILLIC, ISIRI-3342, ISIRI3342, ISO-2022-CN-EXT, ISO-2022-CN, ISO-2022-JP-2, ISO-2022-JP-3, ISO-2022-JP, ISO-2022-KR, ISO-8859-1, ISO-8859-2, ISO-8859-3, ISO-8859-4, ISO-8859-5, ISO-8859-6, ISO-8859-7, ISO-8859-8, ISO-8859-9, ISO-8859-9E, ISO-8859-10, ISO-8859-11, ISO-8859-13, ISO-8859-14, ISO-8859-15, ISO-8859-16, ISO-10646, ISO-10646/UCS2, ISO-10646/UCS4, ISO-10646/UTF-8, ISO-10646/UTF8, ISO-CELTIC, ISO-IR-4, ISO-IR-6, ISO-IR-8-1, ISO-IR-9-1, ISO-IR-10, ISO-IR-11, ISO-IR-14, ISO-IR-15, ISO-IR-16, ISO-IR-17, ISO-IR-18, ISO-IR-19, ISO-IR-21, ISO-IR-25, ISO-IR-27, ISO-IR-37, ISO-IR-49, ISO-IR-50, ISO-IR-51, ISO-IR-54, ISO-IR-55, ISO-IR-57, ISO-IR-60, ISO-IR-61, ISO-IR-69, ISO-IR-84, ISO-IR-85, ISO-IR-86, ISO-IR-88, ISO-IR-89, ISO-IR-90, ISO-IR-92, ISO-IR-98, ISO-IR-99, ISO-IR-100, ISO-IR-101, ISO-IR-103, ISO-IR-109, ISO-IR-110, ISO-IR-111, ISO-IR-121, ISO-IR-122, ISO-IR-126, ISO-IR-127, ISO-IR-138, ISO-IR-139, ISO-IR-141, ISO-IR-143, ISO-IR-144, ISO-IR-148, ISO-IR-150, ISO-IR-151, ISO-IR-153, ISO-IR-155, ISO-IR-156, ISO-IR-157, ISO-IR-166, ISO-IR-179, ISO-IR-193, ISO-IR-197, ISO-IR-199, ISO-IR-203, ISO-IR-209, ISO-IR-226, ISO/TR_11548-1, ISO646-CA, ISO646-CA2, ISO646-CN, ISO646-CU, ISO646-DE, ISO646-DK, ISO646-ES, ISO646-ES2, ISO646-FI, ISO646-FR, ISO646-FR1, ISO646-GB, ISO646-HU, ISO646-IT, ISO646-JP-OCR-B, ISO646-JP, ISO646-KR, ISO646-NO, ISO646-NO2, ISO646-PT, ISO646-PT2, ISO646-SE, ISO646-SE2, ISO646-US, ISO646-YU, ISO2022CN, ISO2022CNEXT, ISO2022JP, ISO2022JP2, ISO2022KR, ISO6937, ISO8859-1, ISO8859-2, ISO8859-3, ISO8859-4, ISO8859-5, ISO8859-6, ISO8859-7, ISO8859-8, ISO8859-9, ISO8859-9E, ISO8859-10, ISO8859-11, ISO8859-13, ISO8859-14, ISO8859-15, ISO8859-16, ISO11548-1, ISO88591, ISO88592, ISO88593, ISO88594, ISO88595, ISO88596, ISO88597, ISO88598, ISO88599, ISO88599E, ISO885910, ISO885911, ISO885913, ISO885914, ISO885915, ISO885916, ISO_646.IRV:1991, ISO_2033-1983, ISO_2033, ISO_5427-EXT, ISO_5427, ISO_5427:1981, ISO_5427EXT, ISO_5428, ISO_5428:1980, ISO_6937-2, ISO_6937-2:1983, ISO_6937, ISO_6937:1992, ISO_8859-1, ISO_8859-1:1987, ISO_8859-2, ISO_8859-2:1987, ISO_8859-3, ISO_8859-3:1988, ISO_8859-4, ISO_8859-4:1988, ISO_8859-5, ISO_8859-5:1988, ISO_8859-6, ISO_8859-6:1987, ISO_8859-7, ISO_8859-7:1987, ISO_8859-7:2003, ISO_8859-8, ISO_8859-8:1988, ISO_8859-9, ISO_8859-9:1989, ISO_8859-9E, ISO_8859-10, ISO_8859-10:1992, ISO_8859-14, ISO_8859-14:1998, ISO_8859-15, ISO_8859-15:1998, ISO_8859-16, ISO_8859-16:2001, ISO_9036, ISO_10367-BOX, ISO_10367BOX, ISO_11548-1, ISO_69372, IT, JIS_C6220-1969-RO, JIS_C6229-1984-B, JIS_C62201969RO, JIS_C62291984B, JOHAB, JP-OCR-B, JP, JS, JUS_I.B1.002, KOI-7, KOI-8, KOI8-R, KOI8-RU, KOI8-T, KOI8-U, KOI8, KOI8R, KOI8U, KSC5636, L1, L2, L3, L4, L5, L6, L7, L8, L10, LATIN-9, LATIN-GREEK-1, LATIN-GREEK, LATIN1, LATIN2, LATIN3, LATIN4, LATIN5, LATIN6, LATIN7, LATIN8, LATIN10, LATINGREEK, LATINGREEK1, MAC-CENTRALEUROPE, MAC-CYRILLIC, MAC-IS, MAC-SAMI, MAC-UK, MAC, MACCYRILLIC, MACINTOSH, MACIS, MACUK, MACUKRAINIAN, MIK, MS-ANSI, MS-ARAB, MS-CYRL, MS-EE, MS-GREEK, MS-HEBR, MS-MAC-CYRILLIC, MS-TURK, MS932, MS936, MSCP949, MSCP1361, MSMACCYRILLIC, MSZ_7795.3, MS_KANJI, NAPLPS, NATS-DANO, NATS-SEFI, NATSDANO, NATSSEFI, NC_NC0010, NC_NC00-10, NC_NC00-10:81, NF_Z_62-010, NF_Z_62-010_(1973), NF_Z_62-010_1973, NF_Z_62010, NF_Z_62010_1973, NO, NO2, NS_4551-1, NS_4551-2, NS_45511, NS_45512, OS2LATIN1, OSF00010001, OSF00010002, OSF00010003, OSF00010004, OSF00010005, OSF00010006, OSF00010007, OSF00010008, OSF00010009, OSF0001000A, OSF00010020, OSF00010100, OSF00010101, OSF00010102, OSF00010104, OSF00010105, OSF00010106, OSF00030010, OSF0004000A, OSF0005000A, OSF05010001, OSF100201A4, OSF100201A8, OSF100201B5, OSF100201F4, OSF100203B5, OSF1002011C, OSF1002011D, OSF1002035D, OSF1002035E, OSF1002035F, OSF1002036B, OSF1002037B, OSF10010001, OSF10010004, OSF10010006, OSF10020025, OSF10020111, OSF10020115, OSF10020116, OSF10020118, OSF10020122, OSF10020129, OSF10020352, OSF10020354, OSF10020357, OSF10020359, OSF10020360, OSF10020364, OSF10020365, OSF10020366, OSF10020367, OSF10020370, OSF10020387, OSF10020388, OSF10020396, OSF10020402, OSF10020417, PT, PT2, PT154, R8, R9, RK1048, ROMAN8, ROMAN9, RUSCII, SE, SE2, SEN_850200_B, SEN_850200_C, SHIFT-JIS, SHIFT_JIS, SHIFT_JISX0213, SJIS-OPEN, SJIS-WIN, SJIS, SS636127, STRK1048-2002, ST_SEV_358-88, T.61-8BIT, T.61, T.618BIT, TCVN-5712, TCVN, TCVN5712-1, TCVN5712-1:1993, THAI8, TIS-620, TIS620-0, TIS620.2529-1, TIS620.2533-0, TIS620, TS-5881, TSCII, TURKISH8, UCS-2, UCS-2BE, UCS-2LE, UCS-4, UCS-4BE, UCS-4LE, UCS2, UCS4, UHC, UJIS, UK, UNICODE, UNICODEBIG, UNICODELITTLE, US-ASCII, US, UTF-7, UTF-8, UTF-16, UTF-16BE, UTF-16LE, UTF-32, UTF-32BE, UTF-32LE, UTF7, UTF8, UTF16, UTF16BE, UTF16LE, UTF32, UTF32BE, UTF32LE, VISCII, WCHAR_T, WIN-SAMI-2, WINBALTRIM, WINDOWS-31J, WINDOWS-874, WINDOWS-936, WINDOWS-1250, WINDOWS-1251, WINDOWS-1252, WINDOWS-1253, WINDOWS-1254, WINDOWS-1255, WINDOWS-1256, WINDOWS-1257, WINDOWS-1258, WINSAMI2, WS2, YU

The first parameter, finput-charset, is the charset used to read the source code files… The second one, fexec-charset, is the used to store the strings and character constants in the executable file, so they will be shown correctly while running…

So, assuming you’re writing your source files in iso-8859-1 (the most common charset on Windows platforms) and want to show them while running in cp437 (the DOS console charset), we could call the compiler like this:

g++ TestChars.cpp -o TestChars.exe -finput-charset=iso-8859-1 -fexec-charset=cp437

And what do we expect to get? :)

Por favor ingrese su contraseña: contraseña

Su contraseña es inválida, por favor verifíquela e inténtelo nuevamente. Ha ingresado: 'contraseña'.

Everything worked just the way we expected! :)

Now, finally, I’ll show how to configure these command line options for the wxDev IDE…

First of all, I must say there are two ways to set compiler options: global options and project options… As you may imagine, the first ones are applied to every compiled project, while the latter just get applied to the currently opened project (they are set in a per project basis)…

To set the parameters in the global compiler options you must got to the Tools menu and then open the Compiler Options item…

Main_Menu_EN

After that, you simply enter the following string (the parameters) into the “Add the following commands when calling compiler” box:

-finput-charset=iso-8859-1 -fexec-charset=cp437

If there are already other parameters configured, you should append them…

Main_Compiler_Options_Filled_EN

They will be sent to both the C compiler and the C++ compiler…

The other alternative is to set the same parameters in the project options…

First, we open the project options… Either going to Project->Project Options or right clicking the project and going to “Project Options”…

Project_Menu_EN

Then, we go to the Parameters page and paste the parameters string in the two compiler boxes… Both parameters can be entered either in a single line or broken apart… Just as before, if there are already other parameters configured, you should append them…

Project_Options_Parameters_Filled_EN

Whell, that’s all… Most IDEs will have similar options!

Incoming search terms for the article:

Related posts:

  1. Attendance Control
  2. Simple C++ String Class
  3. Simple C++ List Class

]]> http://www.neoegm.com/tech/programming/c-cpp/how-to-compile-c-console-programs-which-support-special-characters-iso-8859-1/feed/ 0 Simple C++ List Class http://www.neoegm.com/tech/programming/c-cpp/simple-list-class/ http://www.neoegm.com/tech/programming/c-cpp/simple-list-class/#comments Tue, 18 Aug 2009 20:55:36 +0000 http://www.neoegm.com/?p=976 Related posts:
  1. Simple C++ String Class
  2. cppMemDbg – Easy to use C++ memory leak detection library
  3. Attendance Control
]]> Just as I published some days ago the Simple C++ String Class as a C++ learning exercise, now I am freeing a Simple C++ List Class.

The standard library has a list class. But, while learning, it’s a good idea to know how to develop your own list class.

That’s why I made the List class. It’s not intended for professional projects (for them, you should use the standard library’s list), but as help to learn C++.

template <class TYPE>
class List
{
	/* ... */

public:
	//Construction and destruction
	List() { /* ... */ }
	~List() { /* ... */ }
	
	List(const List& rlList) { /* ... */ }
	
	//Assignment operator
	List& operator=(const List& rlList);

	//Information
	int Length() { /* ... */ }
	bool Empty() { /* ... */ }

	//Element managing
	int Add(TYPE& rtData);
	TYPE* Elem(int nPos);
	bool Delete(int nPos);
	void DeleteAll();
	
	//Search
	int Find(TYPE& rItem, int nStartAt = 0);

	//Operadores
	TYPE& operator[](int nPos) { /* ... */ }	//Elem
	int operator<<(TYPE& rdData) { /* ... */ }	//Add

protected:
	void FreeList();
	void Init() { /* ... */ }
};

//Output
template <class TYPE>
std::ostream& operator<<(std::ostream& oStream, List<TYPE>& rlList);

This is a sample project made to explain the List class usage.

#include <iostream>
	using std::cout;
	using std::cin;
	using std::endl;

#include "List.h"
#include "String.h"

int main(int argc, char *argv[])
{
	cout << "List sample project" << endl;
	cout << "-------------------" << endl << endl;


	//-----------------------------
	cout << "> Creating a list of strings... An empty string finishes the list..." << endl << endl;

	List<String> lStrings;
	String sTmp;
	
	do
	{
		cout << "> String " << lStrings.Length()+1 << ": ";
		cin >> sTmp;
		
		if (sTmp.Length())
			lStrings.Add(sTmp);
	} while (sTmp.Length());
	
	cout << endl << "> Entry finished. " << lStrings.Length() << " string(s) loaded." << endl << endl;
	
	cout << "> Printing list..." << endl << endl;
	
	cout << lStrings;

	cout << endl;
	//-----------------------------
	
	
	//-----------------------------
	do
	{
		cout << "> Type a string to find in the list (exact match) [empty = end]: ";
		cin >> sTmp;

		if (sTmp.Length())
		{
			int nFound = lStrings.Find(sTmp);
			
			if (nFound != -1)
			{
				lStrings.Delete(nFound);

				cout << "> String \"" << sTmp << "\" found at position " << nFound+1 << " and removed." << endl << endl;
				
				cout << "> Printing list..." << endl << endl;

				if (!lStrings.Empty())
					cout << lStrings;
				else
				{
					cout << "[Empty list]" << endl << endl;
					break;
				}
			}
			else
				cout << "> String \"" << sTmp << "\" not found." << endl;
		}
		
		cout << endl;
	} while (sTmp.Length());
	
	cout << endl;
	//-----------------------------

	//-----------------------------
	cout << "> Now getting a bit more complex... Let's create a list of lists of strings... An empty string finishes the list and an empty first string finishes the list of lists..." << endl << endl;

	List< List<String> > lLists;
	List<String> lTmpList;
	int nStrings = 0;

	do
	{
		lTmpList.DeleteAll();
		
		cout << "> Loading list " << lLists.Length()+1 << "..." << endl;
		
		do
		{
			cout << "\t> String " << lTmpList.Length()+1 << ": ";
			cin >> sTmp;
			
			if (sTmp.Length())
			{
				lTmpList.Add(sTmp);
				nStrings++;
			}
		} while (sTmp.Length());
		
		if (lTmpList.Length())
			lLists.Add(lTmpList);
	} while (lTmpList.Length());
	
	cout << endl << "> Entry finished. " << lLists.Length() << " list(s) loaded, " << nStrings << " string(s) loaded." << endl << endl << endl;

	cout << "> Printing lists (standard method)..." << endl << endl;

	cout << lLists;

	cout << endl;
	
	cout << "> Printing lists (custom method)..." << endl << endl;
	
	for (int i = 0; i < lLists.Length(); i++)
	{
		List<String> *plList = lLists.Elem(i);

		if (plList)
		{
			cout << "- List " << i << endl << endl;
			cout << *plList;
			cout << endl;
		}
	}
	//-----------------------------

    return 0;
}

And this is its output:

List sample project
-------------------

> Creating a list of strings... An empty string finishes the list...

> String 1: Test 1
> String 2: Test 2
> String 3: Test 3, a little bit longer
> String 4:

> Entry finished. 3 string(s) loaded.

> Printing list...

Test 1
Test 2
Test 3, a little bit longer

> Type a string to find in the list (exact match) [empty = end]: Hello
> String "Hello" not found.

> Type a string to find in the list (exact match) [empty = end]: Test 1
> String "Test 1" found at position 1 and removed.

> Printing list...

Test 2
Test 3, a little bit longer

> Type a string to find in the list (exact match) [empty = end]: Test 1
> String "Test 1" not found.

> Type a string to find in the list (exact match) [empty = end]: test 2
> String "test 2" not found.

> Type a string to find in the list (exact match) [empty = end]: Test 2
> String "Test 2" found at position 1 and removed.

> Printing list...

Test 3, a little bit longer

> Type a string to find in the list (exact match) [empty = end]: Test 3, a little bit longer
> String "Test 3, a little bit longer" found at position 1 and removed.

> Printing list...

[Empty list]


> Now getting a bit more complex... Let's create a list of lists of strings... An empty string finishes the list and an empty first string finishes the list of lists...

> Loading list 1...
        > String 1: Test 1a
        > String 2: Test 1b
        > String 3: Test 1c
        > String 4:
> Loading list 2...
        > String 1: Test 2a
        > String 2: Test 2b
        > String 3: Test 2c
        > String 4: Test 2d
        > String 5:
> Loading list 3...
        > String 1: Test 3a
        > String 2: Test 3b
        > String 3: This is a looooooooooooooooooooooong string
        > String 4:
> Loading list 4...
        > String 1:

> Entry finished. 3 list(s) loaded, 10 string(s) loaded.


> Printing lists (standard method)...

Test 1a
Test 1b
Test 1c

Test 2a
Test 2b
Test 2c
Test 2d

Test 3a
Test 3b
This is a looooooooooooooooooooooong string


> Printing lists (custom method)...

- List 0

Test 1a
Test 1b
Test 1c

- List 1

Test 2a
Test 2b
Test 2c
Test 2d

- List 2

Test 3a
Test 3b
This is a looooooooooooooooooooooong string

This project also uses the Simple C++ String Class to show the List class working with custom classes. Exactly the same code could be without problem by simply replacing “String” with “string” and including the standard library’s string header.

The code completely is portable.

It’s been developed, compiled and tested using wxDev-C++ for Windows with the MinGW compiler (included in the bundle).

GNU GPL v3 List is licensed under the GNU GPL v3 (attached)…



I’ve also tested the project for memory leaks using the cppMemDbg – Easy to use C++ memory leak detection library and it found no problems at all…

You can download the library output and the cppMemDbg adapted project here:



Now, finally, the download links:

Incoming search terms for the article:

Related posts:

  1. Simple C++ String Class
  2. cppMemDbg – Easy to use C++ memory leak detection library
  3. Attendance Control

]]> http://www.neoegm.com/tech/programming/c-cpp/simple-list-class/feed/ 0 3D Pinball for Windows (Space Cadet) Cracker – How To Modify High Scores http://www.neoegm.com/tech/software/tools/game-cheating/3d-pinball-for-windows-space-cadet-cracker-how-to-modify-high-scores/ http://www.neoegm.com/tech/software/tools/game-cheating/3d-pinball-for-windows-space-cadet-cracker-how-to-modify-high-scores/#comments Mon, 17 Aug 2009 19:43:13 +0000 http://www.neoegm.com/?p=942 Related posts:
  1. Guitar Trainer
  2. Simple C++ String Class
  3. Office Document Property Resetter
]]> Everybody knows the Pinball game that appeared with Windows 95 Plus!… It’s still in current Windows versions…

Pinball_Cracker_Game

Although it may seem incredible, there are still some fanatics of this game…

I’ve made this program in 1999 (some time ago 8-)) to let you modify the High Scores so you could make those fanatics believe you had beaten them…

Pinball_Cracker_Game_High_Scores

(You should be a little more subtle than me)

After starting, you must take into account I wrote this program when I was 13… So I’m dismissed for any possible criticism… Now, after that disclaimer, we can continue…

The tool is very easy to use…

Pinball_Cracker_Main

But has some hidden features that make it a bit more powerful…

There are 3 easter eggs (it seems I really enjoyed writing them at that time) that unlock 3 special options… They must be made in the following order, otherwise they won’t work…

First of all you must open the about screen and wait for the legend to scroll 5 times (you can make it go faster by pressing Shift+U several times)… If you have the Caps Lock enabled you must not use the Shift key to press the U… (As an additional tip, not really useful anyway, you can make the text scroll slower again by pressing Shift+D)

Pinball_Cracker_About_1

Then, you must click sequentially the 4 crosses at the corners in this order: lower-right, upper-left, upper-right, lower-left. Anyway, if you start with the lower-right, the lines will guide you. That will enable the first “cheat”, which unlocks the “Show Verification Code” option at the main screen. The verification code is some sort of checksum used by the game to verify you didn’t modify the high scores.

Pinball_Cracker_About_2

The second cheat is the easiest… You must right-click the upper-right cross while holding Shift and then release it and left-click the lower-right cross… The “Print Hall of Fame” option will be unlocked… It’s a completely unuseful option, but it seems I wanted to develop my printing ability at that time… So don’t ask :)

Pinball_Cracker_About_3

Finally, the latest easter egg (and the most useful of all) gets unlocked by doing the following steps: with the focus (the dotted rectangle) in the upper button, press Shift+P (again the same thing about Caps Lock)…

Pinball_Cracker_About_4

Then, move the focus to the next button by pressing Tab and press Shift+C…

Pinball_Cracker_About_5

That’s all… Now you’ll have enabled the possibility of exporting the scores to a .REG file so you can simply double click it on any computer to set the new scores…

This is how the main screen will now look like…

Pinball_Cracker_Cheats

This tool was originally written in Visual Basic 6, so I opened the project, updated it to the .NET Framework 2.0 (VB.NET) and then fixed some bugs, corrected some things and prepared it to be published… I’m freeing the source code just for the ones who may have curiosity, but I don’t recommend taking it as model for anything…

To run it, you’ll need the .NET Framework 2.0 and the Microsoft Visual Basic PowerPacks 1.2.

UPDATE: I’ve just uploaded the required Visual Basic PowerPacks redistributable file since the ones offered online by Microsoft (2.0 & 3.0) does not fulfill the required dependencies. They seem to be different things. This redistributable is needed in order to be able to open the About box and unlock the special options.



GNU GPL v3 As usual, Pinball Cracker is licensed under the GNU GPL v3 (attached)…

Here are the download links:

Incoming search terms for the article:

Related posts:

  1. Guitar Trainer
  2. Simple C++ String Class
  3. Office Document Property Resetter

]]> http://www.neoegm.com/tech/software/tools/game-cheating/3d-pinball-for-windows-space-cadet-cracker-how-to-modify-high-scores/feed/ 0 Office Document Property Resetter http://www.neoegm.com/tech/software/tools/office-document-property-resetter/ http://www.neoegm.com/tech/software/tools/office-document-property-resetter/#comments Mon, 10 Aug 2009 18:37:19 +0000 http://www.neoegm.com/?p=781 Related posts:
  1. Excel random password generator
  2. Attendance Control (wxWidgets Version)
  3. Celsius to Fahrenheit
]]> This is a tool I’ve made two years ago to solve a problem a friend of mine had. He had at his work a bunch of Word and Excel files created in different computers and wanted to cleanup their properties so they didn’t show the configured Author/Title/Subject/etc. tags.

Office_Document_Property_Resetter_DOC_Prop_1

This would have been a simple problem to solve if there were a few files… They could be cleaned up manually…

Office_Document_Property_Resetter_Word_Menu

Office_Document_Property_Resetter_Word_Prop_1

But there were lots of them!

So… I made this tool :)

Office_Document_Property_Resetter_Main

It’s very easy to use… You just choose the folder where the files are located (it recurses subdirectories) and press Start…

Office_Document_Property_Resetter_Start

You won’t be able to cancel it while working… So, if there are lots of files to process, it could take some time to complete… I recommend running it when you don’t need to use the computer for a while…

Office_Document_Property_Resetter_Working

Once finished, it will show you the summary of what it has done…

Office_Document_Property_Resetter_Finish

In this case there were only two files…

Office_Document_Property_Resetter_Folder

And that’s all… Everything will be cleaned up…

Office_Document_Property_Resetter_DOC_Prop_1b

GNU GPL v3 Office Document Property Resetter is licensed under the GNU GPL v3 (attached)…

Office_Document_Property_Resetter_About

It has been tested with Office 2003 and Office 2007…

Now, finally, the download links…

To recompile from the source code, you’ll have to copy the following files to the “Office Document Property Resetter\Office 2003” folder:

  • C:\Program Files\Common Files\Microsoft Shared\Office11\MSO.DLL
  • C:\Program Files\Common Files\Microsoft Shared\VBA\VBA6\VBE6EXT.OLB
  • C:\Program Files\Microsoft Office\Office11\MSWord.olb
  • C:\Program Files\Microsoft Office\Office11\excel.exe

Those paths are from an Office 2003 installation… I recommend using those files instead of the ones from an Office 2007 (or later) installation since the latter would make the program unusable on computers having the earlier version.

Instead of copying the files, you could locate the following piece of code in the file “Office Document Property ResetterDlg.h“:

//#import "C:\Program Files\Common Files\Microsoft Shared\Office11\MSO.DLL"
#import "Office 2003\MSO.DLL" \
	no_namespace \
	rename("SearchPath", "SearchPathMSO") \
	rename("RGB", "RGBMSO")

//#import "C:\Program Files\Common Files\Microsoft Shared\VBA\VBA6\VBE6EXT.OLB"
#import "Office 2003\VBE6EXT.OLB" \
	no_namespace

//#import "C:\Program Files\Microsoft Office\Office11\MSWord.olb"
#import "Office 2003\MSWord.olb" \
	rename("FindText","FindTextWord")  \
	rename("ReplaceText","ReplaceTextWord")  \
	rename("ExitWindows","ExitWindowsWord")  \
	rename("RGB","RGBWord")  \
	no_dual_interfaces

//#import "C:\Program Files\Microsoft Office\Office11\excel.exe"
#import "Office 2003\excel.exe" \
	exclude("IFont")	\
	exclude("IPicture")	\
	rename("ReplaceText","ReplaceTextXLS")  \
	rename("RGB","RGBXLS")  \
	rename("DialogBox","DialogBoxXLS")  \
	rename("CopyFile","CopyFileXLS")  \
	no_dual_interfaces

And replace it with (notice the addition of the trailing slash):

#import "C:\Program Files\Common Files\Microsoft Shared\Office11\MSO.DLL" \
	no_namespace \
	rename("SearchPath", "SearchPathMSO") \
	rename("RGB", "RGBMSO")

#import "C:\Program Files\Common Files\Microsoft Shared\VBA\VBA6\VBE6EXT.OLB" \
	no_namespace

#import "C:\Program Files\Microsoft Office\Office11\MSWord.olb" \
	rename("FindText","FindTextWord")  \
	rename("ReplaceText","ReplaceTextWord")  \
	rename("ExitWindows","ExitWindowsWord")  \
	rename("RGB","RGBWord")  \
	no_dual_interfaces

#import "C:\Program Files\Microsoft Office\Office11\excel.exe" \
	exclude("IFont")	\
	exclude("IPicture")	\
	rename("ReplaceText","ReplaceTextXLS")  \
	rename("RGB","RGBXLS")  \
	rename("DialogBox","DialogBoxXLS")  \
	rename("CopyFile","CopyFileXLS")  \
	no_dual_interfaces

That will make the compiler look for the files at their actual location… (Do not forget to update the paths if you have installed Office in a different path)

That’s all… Enjoy it!

Incoming search terms for the article:

Related posts:

  1. Excel random password generator
  2. Attendance Control (wxWidgets Version)
  3. Celsius to Fahrenheit

]]> http://www.neoegm.com/tech/software/tools/office-document-property-resetter/feed/ 0 Simple C++ String Class http://www.neoegm.com/tech/programming/c-cpp/simple-string-class/ http://www.neoegm.com/tech/programming/c-cpp/simple-string-class/#comments Sun, 09 Aug 2009 14:12:15 +0000 http://www.neoegm.com/?p=764 Related posts:
  1. Simple C++ List Class
  2. Attendance Control
  3. cppMemDbg – Easy to use C++ memory leak detection library
]]> Every C++ programmer knows that the standard library has a string class. But, while learning, it’s a good idea to know how to develop your own string class.

That’s why I made the String class. It’s not intended for professional projects (for them, you should use the standard library’s string), but as help to learn C++.

class String
{
	char *m_pszString;	//Allocated buffer
	int m_nAllocated;	//Allocated length

public:
	//Construction and destruction
	String() { /* ... */ }
	~String() { /* ... */ }

	//Copy constructors
	String(const char *pszString) { /* ... */ }
	String(const String& rsString) { /* ... */ }

	//Operators (assignment)
	String& operator=(const char *pszString);
	String& operator=(const String& rsString) { /* ... */ }

	//Operators (concatenation)
	String& operator+=(const char *pszString);
	String& operator+=(String& rsString) { /* ... */ }
	String operator+(String rsString);

	//Operators (comparison)
	bool operator<(String sString) { /* ... */ }
	bool operator<=(String sString) { /* ... */ }

	bool operator>(String sString) { /* ... */ }
	bool operator>=(String sString) { /* ... */ }

	bool operator==(String sString) { /* ... */ }
	bool operator!=(String sString) { /* ... */ }

	//Operations
	void Clear();
	String Lower() { /* ... */ }
	String Upper() { /* ... */ }

	//Information
	int Length() { /* ... */ }

	//Cast operators
	operator const char*() { /* ... */ }

protected:	//Helper functions
	/* ... */
};

//Output e input
std::ostream& operator<<(std::ostream& oStream, String& rsString);
std::istream& operator>>(std::istream& iStream, String& rsString);

This is a sample project made to explain the String class usage.

#include <iostream>
	using std::cout;
	using std::cin;
	using std::endl;
#include "String.h"

using namespace std;

int main(int argc, char *argv[])
{
	cout << "String sample project" << endl;
	cout << "---------------------" << endl << endl;

	String a("This"), b("is"), c("a"), d("test");
	String e = a + " " + b + " " + c + " " + d;

	cout << "String parts:" << endl;
	cout << '\t' << a << endl;
	cout << '\t' << b << endl;
	cout << '\t' << c << endl;
	cout << '\t' << d << endl << endl;

	cout << "Concatenated with spaces:" << endl;
	cout << '\t' << e << endl << endl;

	String f, g;

	cout << "Please input a string (empty to break): ";
	cin >> f;
	cout << "Please input other string (empty to break): ";
	cin >> g;

	cout << endl;

	cout << "1st string (" << f << ") is " << f.Length() << " chars long." << endl;
	cout << "2nd string (" << g << ") is " << g.Length() << " chars long." << endl;

	cout << endl;

	cout << "1st string in lowercase is " << f.Lower() << endl;
	cout << "1st string in uppercase is " << f.Upper() << endl << endl;

	cout << "2nd string in lowercase is " << g.Lower() << endl;
	cout << "2nd string in uppercase is " << g.Upper() << endl << endl;

	cout << "1 < 2\t=> " << (f<g?"true":"false") << endl;
	cout << "1 <= 2\t=> " << (f<=g?"true":"false") << endl;
	cout << "1 > 2\t=> " << (f>g?"true":"false") << endl;
	cout << "1 >= 2\t=> " << (f>=g?"true":"false") << endl;
	cout << "1 == 2\t=> " << (f==g?"true":"false") << endl;
	cout << "1 != 2\t=> " << (f!=g?"true":"false") << endl << endl;

	if (f == g)
		cout << "Strings are equal." << endl;
	else
		cout << "Strings are not equal." << endl;

	cout << endl;

	cout << "1+2\t=> " << f+g << endl;
	cout << "2+1\t=> " << g+f << endl;

	cout << endl;

    return 0;
}

And this is its output:

String sample project
---------------------

String parts:
        This
        is
        a
        test

Concatenated with spaces:
        This is a test

Please input a string (empty to break): Hello, string 1
Please input other string (empty to break): Phrase 2

1st string (Hello, string 1) is 15 chars long.
2nd string (Phrase 2) is 8 chars long.

1st string in lowercase is hello, string 1
1st string in uppercase is HELLO, STRING 1

2nd string in lowercase is phrase 2
2nd string in uppercase is PHRASE 2

1 < 2   => false
1 <= 2  => false
1 > 2   => true
1 >= 2  => true
1 == 2  => false
1 != 2  => true

Strings are not equal.

1+2     => Hello, string 1Phrase 2
2+1     => Phrase 2Hello, string 1

The code completely is portable.

It’s been developed, compiled and tested using wxDev-C++ for Windows with the MinGW compiler (included in the bundle).

GNU GPL v3 String is licensed under the GNU GPL v3 (attached)…

Now the download links:

Incoming search terms for the article:

Related posts:

  1. Simple C++ List Class
  2. Attendance Control
  3. cppMemDbg – Easy to use C++ memory leak detection library

]]> http://www.neoegm.com/tech/programming/c-cpp/simple-string-class/feed/ 0 cppMemDbg – Easy to use C++ memory leak detection library http://www.neoegm.com/tech/programming/c-cpp/cppmemdbg-easy-to-use-cpp-memory-leak-detection-library/ http://www.neoegm.com/tech/programming/c-cpp/cppmemdbg-easy-to-use-cpp-memory-leak-detection-library/#comments Sat, 08 Aug 2009 11:51:13 +0000 http://www.neoegm.com/?p=727 Related posts:
  1. cMemDbg – Easy to use C memory leak detection library
  2. Simple C++ List Class
  3. Simple C++ String Class
]]> This library is the C++ sequel to the cMemDbg.

Just as the cMemDbg, it is a very easy to use library which can help you to detect and track memory leaks.

Its usage is very similar to the cMemDbg, but with support for the C++ operators (new, new[], delete and delete[]).

There are lots of solutions for this on the net, but this one has the particularity of being really simple to implement.

>new  003D26D8  36  [Main.cpp:127]
>new  003D2708  36  [Main.cpp:128]
>ERROR  Bad free type  free => delete  003D2708  36
(Main.cpp:128)
>free  003D2708  36  (Main.cpp:128)  [Main.cpp:129]
>free  003D2708  0    [Main.cpp:130]
>ERROR  Trying to free unallocated memory: 003D2708
[Main.cpp:130]
>delete[]  003D3EB0  7  (String.cpp:59)  [String.h:41]
[...]
>delete[]  003D24F0  4  (String.cpp:59)  [String.h:41]
>delete  003D2490  40  (Lista.h:120)  [Lista.h:112]
>INFO  PROBLEM: Memory leak found (36 bytes)
>INFO  Unfreed block  003D26D8  36    [Main.cpp:127]

You just have to add the following include to your main include file (a file that gets included by each file of your project) or, in case you don’t have one, to each file that calls any memory allocation function (malloc, realloc, calloc, free, new, new[], delete or delete[]).

This is the line:

#include "cMemDbg.h"

There are two extra cautions you have to take into account:
1- Include it after the standard headers (stdio.h, stdlib.h, malloc.h, etc.).
2- Never call the delete (or delete[]) operator without knowing if its argument is NULL. So: “delete a;” should become “if (a) delete a;”. Otherwise, the library may show incorrect messages.

That’s all… Expecting more? Well, there is a final step… You have to make this call just before you exit your program so you can get the detailed conclusions:

PrintMemoryLeakInfo();

By default, the library output will go to stdout (normally the console screen). If you want to redirect it to a file, you can call the InitCPPMemDbg() function. This is its prototype:

void InitCPPMemDbg(const char *pszOutputPath = NULL);

Other option, to simplify, is to create a global object of the “cppMemDbg” type at the beginning of the global declarations. You can pass a file path to the constructor to redirect the output. It will call InitCPPMemDbg (to setup the redirect) at construction and PrintMemoryLeakInfo() at destruction.

Simply like this:

cppMemDbg cDbg;

Or, with redirection:

cppMemDbg cDbg("mylocalfile.txt");

Easy, not?

That was all… Really.

The code completely is portable.

GNU GPL v3 cppMemDbg is licensed under the GNU GPL v3 (attached)…

Now, before going to more “expert” features, I’ll leave here the link to download the library for the ones who don’t wish to keep reading:

Now let’s continue…

The library comes with three configurable settings (available in cppMemDbg.cpp):

  • PRINT_OPERATIONS: If set to 1, it will print to the configured output (stdout by default) each memory alloc operation done in the program (allocation or free). Otherwise, the library will just print problems and notifications and the final dump. [Default value = 1]
  • MAX_ALLOC: Internal library memory stack length (in elements). It is the max amount of allocations that can be tracked without being freed. You can increase this value at will if needed. In fact, if it is needed, the library will print a message saying: “INTERNAL_ERROR: Allocation stack overflow, please increase MAX_ALLOC”. [Default value = 256]
  • g_fFile: FILE* to print the library generated notifications to. [Default value = stdout]
  • MAX_DELETE_STACK: Internal library delete nesting stack array length (in elements). It is the max amount of deletes that can be nested. You can increase this value at will if needed. In fact, if it is needed, the library will print a message saying: “INTERNAL_ERROR: Delete stack overflow, please increase MAX_DELETE_STACK”. [Default value = 16]

Finally, there are two more functions you could use wherever needed:

  • PrintTotalAllocatedMemory(): Prints the accumulative amount of memory allocated at the moment of the call.
  • PrintMemoryReservedByCMemDbgLibrary(): Prints the amount of memory reserved by the library (defined at compilation time by the MAX_ALLOC constant).

That’s all… I said it was easy to use.

Anyway, if after reading the cppMemDbg.h file’s comments, you have any questions, comments or suggestions, please feel free to contact me.

Here is the Attendance Control project modified to test it for memory leaks and allocation/deallocation problems with the cppMemDbg library:

The code is portable between Linux and Windows (I’ve tested it myself on both platforms and it worked seamlessly).

It’s been developed, compiled and tested using wxDev-C++ for Windows with the MinGW compiler (included in the bundle). In Linux, it was compiled using the GNU GCC compiler.

It is configured to send the output to the “TestMemDbg.txt” file in the working directory. This is the relevant piece of the Main.cpp file:

//...

#include "ControlDeAsistencia.h"
#include "BasicFunctions.h"
#include <fstream>

#include "cppMemDbg.h"

cppMemDbg cDbg("TestMemDbg.txt");

//...

And this is its successful output (the real output es tabbed to make it easier the analysis en a spreadsheet software):

>new[]  003D3F58  14  [String.cpp:59]
>new[]  003D2438  14  [String.cpp:59]
>delete[]  003D3F58  14  (String.cpp:59)  [String.h:41]
>new[]  003D3EB0  7  [String.cpp:59]
>new[]  003D2450  7  [String.cpp:59]
[...]
>delete[]  003D2558  4  (String.cpp:59)  [String.h:41]
>delete[]  003D24F0  4  (String.cpp:59)  [String.h:41]
>delete  003D2490  40  (Lista.h:120)  [Lista.h:112]
>INFO  No memory leaks detected

Incoming search terms for the article:

Related posts:

  1. cMemDbg – Easy to use C memory leak detection library
  2. Simple C++ List Class
  3. Simple C++ String Class

]]> http://www.neoegm.com/tech/programming/c-cpp/cppmemdbg-easy-to-use-cpp-memory-leak-detection-library/feed/ 0 Attendance Control (wxWidgets Version) http://www.neoegm.com/tech/programming/c-cpp/wxwidgets/wx-control-de-asistencia/ http://www.neoegm.com/tech/programming/c-cpp/wxwidgets/wx-control-de-asistencia/#comments Fri, 31 Jul 2009 21:00:25 +0000 http://www.neoegm.com/?p=479 Related posts:
  1. Attendance Control
  2. Celsius to Fahrenheit
  3. Office Document Property Resetter
]]> wxAttendanceControl is a GUI version of Attendance Control.

It’s been prepared as a further introduction exercise to the wxWidgets GUI (Graphical User Interface) usage (the basic introduction exercise was the Celsius to Fahrenheit application).

For the complete exercise explanation please visit the original Attendance Control exercise.

wxControlAsistencia1

Since the code of the console project was written trying to make it encapsulated and portable, we re-utilized as most of the files that we could. For a detailed description of the files utilized, look at the “Files.xls” file on the source code package.

What’s next will be a very similar overview to the original one, but with the wxWidgets Version screens.

When you first start the program, you can only log in as admin (-1234:prueba)…

wxControlAsistencia2

Then, you’ll get to the administration menu:

wxControlAsistencia3

The next step should be registering the different users using the first option:

wxControlAsistencia4

After that, they’ll be able to sign in themselves:

wxControlAsistencia5

So they’ll get into the attendance screen to record their actions:

wxControlAsistencia6

Each of them ’till they go back to home…

wxControlAsistencia7

When any administrator wants to watch the full listing of users and actions, he simply logs in and goes to the second button of the administration menu:

wxControlAsistencia8

It’s simply the same text that appeared on the console version. But, now you have a second option (third button):

wxControlAsistencia9

If he wants, he can save that information to a file by using, instead, the fourth button:

wxControlAsistencia10

Or the fifth:

wxControlAsistencia11

Finally, he can close the program by going to the sixth button (losing all the data)…

wxControlAsistencia12

That’s all…

Now, like I’ve done before, I’ll leave the links.

The code should be portable, but I’ve only tried it on Windows.

It’s been developed, compiled and tested using wxDev-C++ for Windows with the MinGW compiler (included in the bundle).

GNU GPL v3 wxControlAsistencia is licensed under the GNU GPL v3 (attached)…

Update: minor bug in String.cpp fixed => version 1.01

Incoming search terms for the article:

Related posts:

  1. Attendance Control
  2. Celsius to Fahrenheit
  3. Office Document Property Resetter

]]> http://www.neoegm.com/tech/programming/c-cpp/wxwidgets/wx-control-de-asistencia/feed/ 0 Celsius to Fahrenheit http://www.neoegm.com/tech/programming/c-cpp/wxwidgets/celsius-to-fahrenheit/ http://www.neoegm.com/tech/programming/c-cpp/wxwidgets/celsius-to-fahrenheit/#comments Thu, 30 Jul 2009 22:00:33 +0000 http://www.neoegm.com/?p=474 Related posts:
  1. Convert Celsius to Fahrenheit Online
  2. Attendance Control (wxWidgets Version)
  3. Attendance Control
]]> If you just want to convert temperatures by using a website, you should visit the online celsius to fahrenheit conversion tool. Otherwise, keep reading…

This is a very tiny and simple application I’ve written to teach the basic usage of wxWidgets as an introduction to GUI (Graphical User Interfaces).

Its purpose is just what it’s name says: converting from celsius degrees to fahrenheit degrees (and sideways).

CelsiusAFahrenheit

These are the two formulas needed to make the program (in fact one is derived from the other, but for the sake of simplicity, I’m leaving both):

Tcelsius = (5/9) * (Tfahrenheit - 32)
Tfahrenheit = (9/5) * Tcelsius + 32

It’s been developed, compiled and tested using wxDev-C++ for Windows with the MinGW compiler (included in the bundle).

The code should be portable, but I haven’t tested it myself on other platforms.

GNU GPL v3 CelsiusAFahrenheit is licensed under the GNU GPL v3 (attached)…

Incoming search terms for the article:

Related posts:

  1. Convert Celsius to Fahrenheit Online
  2. Attendance Control (wxWidgets Version)
  3. Attendance Control

]]> http://www.neoegm.com/tech/programming/c-cpp/wxwidgets/celsius-to-fahrenheit/feed/ 0 Attendance Control http://www.neoegm.com/tech/programming/c-cpp/control-de-asistencia/ http://www.neoegm.com/tech/programming/c-cpp/control-de-asistencia/#comments Wed, 29 Jul 2009 21:00:42 +0000 http://www.neoegm.com/?p=476 Related posts:
  1. Attendance Control (wxWidgets Version)
  2. Simple C++ List Class
  3. Simple C++ String Class
]]> “Attendance Control” is a console application made as an exercise to integrate the different C++ concepts taught in class up to the middle of the year.

The main objective is to be able to develop a employee attendance control which records the times (and justifications, if corresponding) of each time the employees arrive, go to lunch, return from lunch and go back to home.

Sistema de control de asistencia de personal
--------------------------------------------

DNI:

The complete wording says:

Develop an employee attendance control system (for later verification of absences and late arrivals with their corresponding justifications) and its managemente private part (user registration and gathered data visualization).

The main screen must staywaiting for ID [DNI] and password.

There must be a preset admin user with DNI = -1234 and Password = prueba.

In case of being an administrator user, you’ll be able to access the management part, with the following options:

1- Alta de usuario [New user]
2- Lista de usuarios (datos adquiridos) [User list (gathered data)]
3- Salida a archivo [Output to file]
4- Cerrar la aplicación [Close the application]
0- Volver a la pantalla principal [Back to the main screen]

Otherwise, it will be asked which kind of action are you about to do (Arrival [Ingreso], return to home [Salida], lunch [Salida a almuerzo] or return from lunch [Retorno de almuerzo]) and its justification in case it corresponds, and they will be recorded along with the current time in a “Events” record of the corresponding user.

The user required data is:
DNI [ID]
Nombre completo [Full name]
Contraseña [Password]
Si es administrador [Whether it is administrator]
Eventos relacionados [Related events]

It’s desired to use as a base the class “PersonaBasica” [Basic person] which has already been developed by the IT department, whose header file “PersonaBasica.h” is attached below:

#include "String.h"
#include <iostream>

class PersonaBasica
{
	String m_sNombreCompleto;
	long m_nDNI;

public:
	//Construcción
	PersonaBasica() { m_nDNI = 0; }

	//Encapsulaciones
	long DNI() const { return m_nDNI; }
	void DNI(long val) { m_nDNI = val; }

	String NombreCompleto() const { return m_sNombreCompleto; }
	void NombreCompleto(String val) { m_sNombreCompleto = val; }
};

std::ostream& operator<<(std::ostream& oStream, PersonaBasica& rpPersonaBasica);

Note: the lengths of the data to be registered is completely unknown and rumors are circulating that the users are used to write pretty elaborate justifications.

When you first start the program, you can only log in as admin (-1234:prueba)…

Sistema de control de asistencia de personal
--------------------------------------------

DNI: -1234
Contraseña: prueba
Usuario "Administrador" reconocido.

Presione una tecla para continuar...

Then, you’ll get to the administration menu:

Sistema de control de asistencia de personal (ADMNISTRACION)
------------------------------------------------------------

1- Alta de usuario
2- Lista de usuarios (datos adquiridos)
3- Salida a archivo
4- Cerrar la aplicación
0- Volver a la pantalla principal

Ingrese la opción deseada:

The next step should be registering the different users using the first option:

Sistema de control de asistencia de personal (Alta de usuario)
--------------------------------------------------------------

DNI: 12345678
Nombre completo: Pedro Gutierrez
Password: 123bbb
Administrador [1 = Sí/0 = No]: 0

Persona agregada satisfatoriamente.

Presione una tecla para continuar...

After that, they’ll be able to sign in themselves:

Sistema de control de asistencia de personal
--------------------------------------------

DNI: 12345678
Contraseña: 123bbb
Usuario "Pedro Gutierrez" reconocido.

Presione una tecla para continuar...

So they’ll get into the attendance screen to record their actions:

Asistencia de "Pedro Gutierrez"
-------------------------------

Tipo de asistencia:
        1- Ingreso
        2- Salida
        3- Salida a almorzar
        4- Vuelta de almorzar
Selección: 1

Justificación (si corresponde): Llegué tarde porque había
corte de calles.

Evento agregado satisfactoriamente.

Presione una tecla para continuar...

Each of them ’till they go back to home…

Asistencia de "Pedro Gutierrez"
-------------------------------

Tipo de asistencia:
        1- Ingreso
        2- Salida
        3- Salida a almorzar
        4- Vuelta de almorzar
Selección: 2

Justificación (si corresponde): Me voy más temprano porque
tengo que llevar a mi hijo al médico.

Evento agregado satisfactoriamente.

Presione una tecla para continuar...

When any administrator wants to watch the full listing of users and actions, he simply logs in and goes to the second option of the administration menu:

Sistema de control de asistencia de personal (Lista de
usuarios)
------------------------------------------------------

DNI: -1234
Nombre completo: Administrador
Password: ********
Administrador: 1
Cantidad de eventos: 0
Eventos:

[Esta persona no posee eventos]


DNI: 12345678
Nombre completo: Pedro Gutierrez
Password: ********
Administrador: 0
Cantidad de eventos: 4
Eventos:

Hora: 28/07/2009 14:13:27
Tipo: Ingreso
Justificación: Llegué tarde porque había corte de calles.

Hora: 28/07/2009 14:14:23
Tipo: Salida a almorzar
Justificación:

Hora: 28/07/2009 14:14:44
Tipo: Vuelta de almorzar
Justificación:

Hora: 28/07/2009 14:14:52
Tipo: Salida
Justificación: Me voy más temprano porque tengo que llevar a
mi hijo al médico.

Presione una tecla para continuar...

If he wants, he can save that information to a file by using, instead, the third option:

Sistema de control de asistencia de personal (ADMNISTRACION)
------------------------------------------------------------

1- Alta de usuario
2- Lista de usuarios (datos adquiridos)
3- Salida a archivo
4- Cerrar la aplicación
0- Volver a la pantalla principal

Ingrese la opción deseada: 3

Ingrese la ruta del archivo a guardar: c:asistencia.txt
Archivo guardado satisfactoriamente

Presione una tecla para continuar...

Finally, he can close the program by going to the fourth option (losing all the data)…

Sistema de control de asistencia de personal (ADMNISTRACION)
------------------------------------------------------------

1- Alta de usuario
2- Lista de usuarios (datos adquiridos)
3- Salida a archivo
4- Cerrar la aplicación
0- Volver a la pantalla principal

Ingrese la opción deseada: 4
Saliendo de la aplicación...

Presione una tecla para continuar...

That’s the idea of the application…

Now I’ll leave the links for the ones who don’t want to solve it themselves (or the ones who just want to run it and watch it work).

The code is portable between Linux and Windows (I’ve tested it myself on both platforms and it worked seamlessly).

It’s been developed, compiled and tested using wxDev-C++ for Windows with the MinGW compiler (included in the bundle). In Linux, it was compiled using the GNU GCC compiler.

GNU GPL v3 ControlAsistencia is licensed under the GNU GPL v3 (attached)…

Update: minor bug in String.cpp fixed => version 1.01

Incoming search terms for the article:

Related posts:

  1. Attendance Control (wxWidgets Version)
  2. Simple C++ List Class
  3. Simple C++ String Class

]]> http://www.neoegm.com/tech/programming/c-cpp/control-de-asistencia/feed/ 0 cMemDbg – Easy to use C memory leak detection library http://www.neoegm.com/tech/programming/c-cpp/cmemdbg-easy-to-use-c-memory-leak-detection-library/ http://www.neoegm.com/tech/programming/c-cpp/cmemdbg-easy-to-use-c-memory-leak-detection-library/#comments Mon, 06 Apr 2009 18:42:07 +0000 http://www.neoegm.com/?p=58 Related posts:
  1. cppMemDbg – Easy to use C++ memory leak detection library
  2. Simple C++ List Class
  3. Simple C++ String Class
]]> After some time working with C, I decided to develop a very easy to use library which can help you to detect and track memory leaks.

There are lots of solutions for this on the net, but this one has the particularity of being really simple to implement.


You just have to add the following include to your main include file (a file that gets included by each file of your project) or, in case you don’t have one, to each file that calls any memory allocation function (malloc, realloc, calloc or free). The only extra caution you have to take into account is to include it after the standard headers (stdio.h, stdlib.h, malloc.h, etc.).

This is the line:

#include "cMemDbg.h"

That’s all… Expecting more? Well, there is a final step… You have to make this call just before you exit your program so you can get the detailed conclusions:

PrintMemoryLeakInfo();

Easy, not?

That was all… Really.

Now, before going to more “expert” features, I’ll leave here the link to download the library for the ones who don’t wish to keep reading:

Now let’s continue…

The library comes with three configurable settings (available in cMemDbg.c):

  • PRINT_OPERATIONS: If set to 1, it will print to the configured output (stdout by default) each memory alloc operation done in the program (allocation or free). Otherwise, the library will just print problems and notifications and the final dump. [Default value = 1]
  • MAX_ALLOC: Internal library memory stack length (in elements). It is the max amount of allocations that can be tracked without being freed. You can increase this value at will if needed. In fact, if it is needed, the library will print a message saying: “INTERNAL_ERROR: Allocation stack overflow, please increase MAX_ALLOC”. [Default value = 256]
  • PRINT_OUTPUT: Location to print the library generated notifications (can be any stream/file in which you could print using fprintf). [Default value = stdout]

Finally, there are two more functions you could use wherever needed:

  • PrintTotalAllocatedMemory(): Prints the accumulative amount of memory allocated at the moment of the call.
  • PrintMemoryReservedByCMemDbgLibrary(): Prints the amount of memory reserved by the library (defined at compilation time by the MAX_ALLOC constant).

That’s all… I said it was easy to use.

Anyway, if after reading the cMemDbg.h files’ comments, you have any questions, comments or suggestions, please feel free to contact me.

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