[Boost-commit] svn:boost r56191 - trunk/tools/jam/src

Subject: [Boost-commit] svn:boost r56191 - trunk/tools/jam/src
From: ghost_at_[hidden]
Date: 2009-09-14 12:57:58

Author: vladimir_prus
Date: 2009-09-14 12:57:57 EDT (Mon, 14 Sep 2009)
New Revision: 56191
URL: http://svn.boost.org/trac/boost/changeset/56191

Log:
Implement SPLIT_BY_CHARACTERS.

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

Text files modified: 
   trunk/tools/jam/src/builtins.c |    26 ++++++++++++++++++++++++++              
   trunk/tools/jam/src/builtins.h |     1 +                                       
   2 files changed, 27 insertions(+), 0 deletions(-)

Modified: trunk/tools/jam/src/builtins.c
==============================================================================
--- trunk/tools/jam/src/builtins.c	(original)
+++ trunk/tools/jam/src/builtins.c	2009-09-14 12:57:57 EDT (Mon, 14 Sep 2009)
@@ -141,6 +141,12 @@
       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 @@
     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 )
 {

Modified: trunk/tools/jam/src/builtins.h
==============================================================================
--- trunk/tools/jam/src/builtins.h	(original)
+++ trunk/tools/jam/src/builtins.h	2009-09-14 12:57:57 EDT (Mon, 14 Sep 2009)
@@ -31,6 +31,7 @@
 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 );