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    wxStringTokenizer tkn;
 119
 120 %s
 121 }
 122 #undef LNG
 123
 124 """ % (ifdefs, lngtable))
 125
 126
 127 def ReplaceGeneratedPartOfFile(fname, func):
 128     """
 129         Replaces the part of file marked with the special comments with the
 130         output of func.
 131
 132         fname is the name of the input file and func must be a function taking
 133         a file and language table on input and writing the appropriate chunk to
 134         this file, e.g. WriteEnum or WriteTable.
 135     """
 136     fin = open(fname, 'rt')
 137     fnameNew = fname + '.new'
 138     fout = open(fnameNew, 'wt')
 139     betweenBeginAndEnd = 0
 140     afterEnd = 0
 141     for l in fin.readlines():
 142         if l == '// --- --- --- generated code begins here --- --- ---\n':
 143             if betweenBeginAndEnd or afterEnd:
 144                 print 'Unexpected starting comment.'
 145             betweenBeginAndEnd = 1
 146             fout.write(l)
 147             func(fout, table)
 148         elif l == '// --- --- --- generated code ends here --- --- ---\n':
 149             if not betweenBeginAndEnd:
 150                 print 'End comment found before the starting one?'
 151                 break
 152
 153             betweenBeginAndEnd = 0
 154             afterEnd = 1
 155
 156         if not betweenBeginAndEnd:
 157             fout.write(l)
 158
 159     if not afterEnd:
 160         print 'Failed to process %s.' % fname
 161         os.remove(fnameNew)
 162         sys.exit(1)
 163
 164     os.remove(fname)
 165     os.rename(fnameNew, fname)
 166
 167 table = ReadTable()
 168 ReplaceGeneratedPartOfFile('include/wx/intl.h', WriteEnum)
 169 ReplaceGeneratedPartOfFile('interface/wx/intl.h', WriteEnum)
 170 ReplaceGeneratedPartOfFile('src/common/intl.cpp', WriteTable)