misc/languages/genlang.py

   1 #!/usr/bin/env python
   2
   3 # Run this script from top-level wxWidgets directory to update the contents of
   4 # include/wx/intl.h and src/common/intl.cpp using information from langtabl.txt
   5 #
   6 # Warning: error detection and reporting here is rudimentary, check if the
   7 # files were updated correctly with "svn diff" before committing them!
   8
   9 import os
  10 import string
  11 import sys
  12
  13 def ReadTable():
  14     table = []
  15     try:
  16         f = open('misc/languages/langtabl.txt')
  17     except:
  18         print "Did you run the script from top-level wxWidgets directory?"
  19         raise
  20
  21     for i in f.readlines():
  22         ispl = i.split()
  23         table.append((ispl[0], ispl[1], ispl[2], ispl[3], ispl[4], string.join(ispl[5:])))
  24     f.close()
  25     return table
  26
  27
  28 def WriteEnum(f, table):
  29    f.write("""
  30 /**
  31     The languages supported by wxLocale.
  32
  33     This enum is generated by misc/languages/genlang.py
  34     When making changes, please put them into misc/languages/langtabl.txt
  35 */
  36 enum wxLanguage
  37 {
  38     /// User's default/preffered language as got from OS.
  39     wxLANGUAGE_DEFAULT,
  40
  41     /// Unknown language, returned if wxLocale::GetSystemLanguage fails.
  42     wxLANGUAGE_UNKNOWN,
  43
  44 """);
  45    knownLangs = []
  46    for i in table:
  47        if i[0] not in knownLangs:
  48           f.write('    %s,\n' % i[0])
  49           knownLangs.append(i[0])
  50    f.write("""
  51     /// For custom, user-defined languages.
  52     wxLANGUAGE_USER_DEFINED
  53 };
  54
  55 """)
  56
  57
  58 def WriteTable(f, table):
  59    all_langs = []
  60    all_sublangs = []
  61
  62    lngtable = ''
  63    ifdefs = ''
  64
  65    for i in table:
  66        ican = '"%s"' % i[1]
  67        if ican == '"-"': ican = '""'
  68        ilang = i[2]
  69        if ilang == '-': ilang = '0'
  70        isublang = i[3]
  71        if isublang == '-': isublang = '0'
  72        if (i[4] == "LTR") :
  73            ilayout = "wxLayout_LeftToRight"
  74        elif (i[4] == "RTL"):
  75            ilayout = "wxLayout_RightToLeft"
  76        else:
  77            print "ERROR: Invalid value for the layout direction";
  78        lngtable += '   LNG(%-38s %-7s, %-15s, %-34s, %s, %s)\n' % \
  79                      ((i[0]+','), ican, ilang, isublang, ilayout, i[5])
  80        if ilang not in all_langs: all_langs.append(ilang)
  81        if isublang not in all_sublangs: all_sublangs.append(isublang)
  82
  83    for s in all_langs:
  84        if s != '0':
  85            ifdefs += '#ifndef %s\n#define %s (0)\n#endif\n' % (s, s)
  86    for s in all_sublangs:
  87        if s != '0' and s != 'SUBLANG_DEFAULT':
  88            ifdefs += '#ifndef %s\n#define %s SUBLANG_DEFAULT\n#endif\n' % (s, s)
  89
  90    f.write("""
  91 // This table is generated by misc/languages/genlang.py
  92 // When making changes, please put them into misc/languages/langtabl.txt
  93
  94 #if !defined(__WIN32__) || defined(__WXMICROWIN__)
  95
  96 #define SETWINLANG(info,lang,sublang)
  97
  98 #else
  99
 100 #define SETWINLANG(info,lang,sublang) \\
 101     info.WinLang = lang, info.WinSublang = sublang;
 102
 103 %s
 104
 105 #endif // __WIN32__
 106
 107 #define LNG(wxlang, canonical, winlang, winsublang, layout, desc) \\
 108     info.Language = wxlang;                               \\
 109     info.CanonicalName = wxT(canonical);                  \\
 110     info.LayoutDirection = layout;                        \\
 111     info.Description = wxT(desc);                         \\
 112     SETWINLANG(info, winlang, winsublang)                 \\
 113     AddLanguage(info);
 114
 115 void wxLocale::InitLanguagesDB()
 116 {
 117    wxLanguageInfo info;
 118
 119 %s
 120 }
 121 #undef LNG
 122
 123 """ % (ifdefs, lngtable))
 124
 125
 126 def ReplaceGeneratedPartOfFile(fname, func):
 127     """
 128         Replaces the part of file marked with the special comments with the
 129         output of func.
 130
 131         fname is the name of the input file and func must be a function taking
 132         a file and language table on input and writing the appropriate chunk to
 133         this file, e.g. WriteEnum or WriteTable.
 134     """
 135     fin = open(fname, 'rt')
 136     fnameNew = fname + '.new'
 137     fout = open(fnameNew, 'wt')
 138     betweenBeginAndEnd = 0
 139     afterEnd = 0
 140     for l in fin.readlines():
 141         if l == '// --- --- --- generated code begins here --- --- ---\n':
 142             if betweenBeginAndEnd or afterEnd:
 143                 print 'Unexpected starting comment.'
 144             betweenBeginAndEnd = 1
 145             fout.write(l)
 146             func(fout, table)
 147         elif l == '// --- --- --- generated code ends here --- --- ---\n':
 148             if not betweenBeginAndEnd:
 149                 print 'End comment found before the starting one?'
 150                 break
 151
 152             betweenBeginAndEnd = 0
 153             afterEnd = 1
 154
 155         if not betweenBeginAndEnd:
 156             fout.write(l)
 157
 158     if not afterEnd:
 159         print 'Failed to process %s.' % fname
 160         os.remove(fnameNew)
 161         sys.exit(1)
 162
 163     os.remove(fname)
 164     os.rename(fnameNew, fname)
 165
 166 table = ReadTable()
 167 ReplaceGeneratedPartOfFile('include/wx/language.h', WriteEnum)
 168 ReplaceGeneratedPartOfFile('interface/wx/language.h', WriteEnum)
 169 ReplaceGeneratedPartOfFile('src/common/languageinfo.cpp', WriteTable)