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Implement SPLIT_BY_CHARACTERS.

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This is much faster than regex.split if splitting by a single char,
or by a set of one-char delimiters.


[SVN r56191]
This commit is contained in:
Vladimir Prus
2009-09-14 16:57:57 +00:00
parent d9f3e9ed28
commit 07571bbe5c
2 changed files with 27 additions and 0 deletions
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26
src/engine/builtins.c
View File

@@ -141,6 +141,12 @@ void load_builtins()
bind_builtin( "MATCH",
builtin_match, 0, 0 ) );
{
char * args[] = { "string", ":", "delimiters" };
bind_builtin( "SPLIT_BY_CHARACTERS",
builtin_split_by_characters, 0, 0 );
}
duplicate_rule( "NoCare",
bind_builtin( "NOCARE",
builtin_flags, T_FLAG_NOCARE, 0 ) );
@@ -845,6 +851,26 @@ LIST * builtin_match( PARSE * parse, FRAME * frame )
return result;
}
LIST * builtin_split_by_characters( PARSE * parse, FRAME * frame )
{
LIST * l1 = lol_get( frame->args, 0 );
LIST * l2 = lol_get( frame->args, 1 );
LIST * result = 0;
char* s = l1->string;
char* delimiters = l2->string;
char* t;
t = strtok (s, delimiters);
while (t)
{
result = list_new(result, newstr(t));
t = strtok (NULL, delimiters);
}
return result;
}
LIST * builtin_hdrmacro( PARSE * parse, FRAME * frame )
{

1
src/engine/builtins.h
View File

@@ -31,6 +31,7 @@ LIST *builtin_glob( PARSE *parse, FRAME *args );
LIST *builtin_glob_recursive( PARSE *parse, FRAME *frame );
LIST *builtin_subst( PARSE *parse, FRAME *args );
LIST *builtin_match( PARSE *parse, FRAME *args );
LIST *builtin_split_by_characters( PARSE *parse, FRAME *args );
LIST *builtin_hdrmacro( PARSE *parse, FRAME *args );
LIST *builtin_rulenames( PARSE *parse, FRAME *args );
LIST *builtin_varnames( PARSE *parse, FRAME *args );