extern langType getFileLanguage (const char *const fileName)
{
langType language = Option.language;
if (language == LANG_AUTO)
{
language = getExtensionLanguage (fileExtension (fileName));
if (language == LANG_IGNORE)
language = getPatternLanguage (fileName);
#ifdef SYS_INTERPRETER
if (language == LANG_IGNORE)
{
fileStatus *status = eStat (fileName);
if (status->isExecutable)
language = getInterpreterLanguage (fileName);
}
#endif
}
return language;
}
extern langType getFileLanguage (const char *const fileName)
{
langType language = Option.language;
if (language == LANG_AUTO)
{
vString* spec;
FILE* input;
language = LANG_IGNORE;
verbose ("Get file language for %s\n", fileName);
input = fopen (fileName, "rb");
{
const char* baseName = baseFilename (fileName);
verbose (" pattern: %s\n", baseName);
language = getPatternLanguage (baseName, input);
if (input)
rewind (input);
else
goto template_file;
}
if (language == LANG_IGNORE && (spec = extracEmacsModeAtFirstLine (input)))
{
verbose (" emacs mode at the first line: %s\n", vStringValue (spec));
language = getSpecLanguage (vStringValue (spec), input);
vStringDelete (spec);
}
rewind(input);
if (language == LANG_IGNORE && (spec = extractInterpreter (input)))
{
verbose (" interpreter: %s\n", vStringValue (spec));
language = getSpecLanguage (vStringValue (spec), input);
vStringDelete (spec);
}
rewind(input);
if (language == LANG_IGNORE && (spec = extractEmacsModeLanguageAtEOF (input)))
{
verbose (" emacs mode at the EOF: %s\n", vStringValue (spec));
language = getSpecLanguage (vStringValue (spec), input);
vStringDelete (spec);
}
rewind(input);
if (language == LANG_IGNORE && (spec = extractVimFileType (input)))
{
verbose (" vim modeline: %s\n", vStringValue (spec));
language = getSpecLanguage (vStringValue (spec), input);
vStringDelete (spec);
}
rewind(input);
template_file:
if (language == LANG_IGNORE)
{
const char* const tExt = ".in";
char* baseName = baseFilenameSansExtensionNew (fileName, tExt);
if (baseName)
{
verbose (" pattern + template(%s): %s\n", tExt, baseName);
language = getPatternLanguage(baseName, input);
eFree (baseName);
}
}
if (input)
fclose (input);
}
return language;
}