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-rw-r--r--dmake/dmstring.c300
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diff --git a/dmake/dmstring.c b/dmake/dmstring.c
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--- a/dmake/dmstring.c
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-/* RCS $Id: dmstring.c,v 1.2 2007-01-18 09:29:40 vg Exp $
---
--- SYNOPSIS
--- String handling code
---
--- DESCRIPTION
--- Routines to handle string manipulation. This code is not specific
--- to dmake and has/and will be used in other programs. The string
--- "" is considered the NULL string, if NIL(char) is received instead
--- undefined results may occurr. (In reality NIL(char) is checked for
--- but in general it is not safe to assume NIL(char) == NULL)
---
--- AUTHOR
--- Dennis Vadura, dvadura@dmake.wticorp.com
---
--- WWW
--- http://dmake.wticorp.com/
---
--- COPYRIGHT
--- Copyright (c) 1996,1997 by WTI Corp. All rights reserved.
---
--- This program is NOT free software; you can redistribute it and/or
--- modify it under the terms of the Software License Agreement Provided
--- in the file <distribution-root>/readme/license.txt.
---
--- LOG
--- Use cvs log to obtain detailed change logs.
-*/
-
-#include "extern.h"
-
-PUBLIC char *
-DmStrJoin( src, data, n, fr )/*
-===============================
- Join data to src according to value of n.
-
- n = -1 - return strcat( src, data )
- n >= 0 - return strncat( src, data, n )
-
- FREE original src if fr == TRUE, else leave it alone */
-
-char *src;
-char *data;
-int n;
-int fr;
-{
- char *t;
- int l;
- int flag = FALSE;
-
- DB_ENTER( "DmStrJoin" );
-
- if( src == NIL(char) ) { src = ""; flag = TRUE; }
- if( data == NIL(char) ) data = "";
- DB_PRINT( "str", ("Joining [%s] [%s] %d", src, data, n) );
-
- if( n == -1 ) n = strlen( data );
-
- l = strlen( src ) + n + 1;
- if( (t = MALLOC( l, char )) == NIL(char) ) No_ram();
-
- strcpy( t, src );
- if (n) strncat( t, data, n );
- t[ l-1 ] = '\0';
-
- if( !flag && fr ) FREE( src );
-
- DB_PRINT( "str", ("Result [%s]", t) );
- DB_RETURN( t );
-}
-
-
-
-
-PUBLIC char *
-DmStrAdd( src, data, fr )/*
-===========================
- append data to src with space in between if src is not NIL(char) or ""
- and free both src and data if fr == TRUE, otherwise leave them be */
-
-char *src;
-char *data;
-int fr;
-{
- char *t;
- int l;
- int sflag;
- int dflag;
-
- DB_ENTER( "DmStrAdd" );
-
- sflag = dflag = fr;
-
- if( src == NIL(char) ) { src = ""; sflag = FALSE; }
- if( data == NIL(char) ) { data = ""; dflag = FALSE; }
- DB_PRINT( "str", ("Adding [%s] [%s] %d", src, data, fr) );
-
- l = strlen(src) + strlen(data) + 1;
- if( *src ) l++;
-
- if( (t = MALLOC( l, char )) == NIL(char) ) No_ram();
-
- strcpy( t, src );
-
- if( *data )
- {
- if( *src ) strcat( t, " " );
- strcat( t, data );
- }
-
- if( sflag ) FREE( src );
- if( dflag ) FREE( data );
-
- DB_PRINT( "str", ("Result [%s]", t) );
- DB_RETURN( t );
-}
-
-
-
-PUBLIC char *
-DmStrApp( src1, src2 )/*
-========================
- Append two strings together, and return the result with a space between
- the two strings. FREE the first string if it is not NIL and always
- leave the second string be. */
-char *src1;
-char *src2;
-{
- src2 = DmStrAdd( src1, src2, FALSE );
- if( src1 != NIL(char) ) FREE( src1 );
- return( src2 );
-}
-
-
-PUBLIC char *
-DmStrDup( str )/*
-================= Duplicate the contents of a string, by using malloc */
-char *str;
-{
- char *t;
-
- if( str == NIL(char) ) return( NIL(char) );
-
- if( (t = MALLOC( strlen( str )+1, char )) == NIL(char) ) No_ram();
- strcpy( t, str );
-
- return( t );
-}
-
-
-
-PUBLIC char *
-DmStrDup2( str )/*
-==================
- This function is used solely to properly quote command line arguments when
- they are reinserted int MAKEMACROS so that they can be used further in
- a processing line. */
-char *str;
-{
- char *t;
- size_t size;
- size_t alloced;
- char *tmp;
- char *dest;
- int seen_equal = 0;
-
- if(str == NIL(char)) return(NIL(char));
- size = strlen(str) + 1;
- alloced = size + 2; /* for two quotes */
-
- for(tmp = str; *tmp; tmp++)
- if(*tmp == '"')
- alloced++;
-
- if((t = MALLOC(alloced, char)) == NIL(char)) No_ram();
-
- for(tmp = str, dest = t; *tmp; tmp++, dest++) {
- if(*tmp == '=' && !seen_equal) {
- seen_equal = 1;
- *dest++ = *tmp;
- *dest = '"';
- continue;
- }
- if(*tmp == '"')
- *dest++ = '\\';
- *dest = *tmp;
- }
-
- if(!seen_equal)
- Fatal("DmStrDup2 invoked without argument of form x=y\n");
-
- *dest++ = '"';
- *dest = 0;
-
- return t;
-}
-
-
-
-PUBLIC char *
-DmStrPbrk( s1, s2 )/*
-====================
- find first occurrence of char in s2 in string s1.
- Returns a pointer to the first occurrence. NOTE '\0' is considered part
- of s2 and a pointer to it is returned if no other chars match. */
-
-char *s1;
-char *s2;
-{
- register char *t;
-
- if( s1 == NIL(char) || s2 == NIL(char) ) return( "" );
-
- for( t=s1; *t && (strchr( s2, *t ) == NIL(char)); t++ );
- return( t );
-}
-
-
-
-
-PUBLIC char *
-DmStrSpn( s1, s2 )/*
-====================
- return pointer to first char in s1 that does not belong to s2.
- Returns the pointer if match found, else returns pointer to null char
- in s1. (ie. "" ) */
-
-char *s1;
-char *s2;
-{
- register char *t;
-
- if( s1 == NIL(char) || s2 == NIL(char) ) return( "" );
-
- for( t=s1; *t && (strchr( s2, *t ) != NIL(char)); t++ );
- return( t );
-}
-
-
-
-
-PUBLIC char *
-DmStrStr( s1, s2 )/*
-==================== find first occurrence in s1 of s2 */
-char *s1;
-char *s2;
-{
- register char *s;
- register char *p;
- register char *r;
-
- if( s1 != NIL(char) && s2 != NIL(char) )
- for( s=s1; *s; s++ )
- if( *s == *s2 )
- {
- for( r=s+1, p = s2+1; *p && (*r == *p); r++, p++ );
- if( !*p ) return( s );
- }
-
- return( NIL(char) );
-}
-
-
-
-PUBLIC char *
-DmSubStr( s, e )/*
-==================
- Return the string between the two pointers s and e, not including the
- char that e points to. NOTE: This routine assumes that s and e point
- into the same string. */
-
-char *s;
-char *e;
-{
- char save;
- int len = e-s;
-
- if( len < 0 || len > strlen(s) )
- Fatal( "Internal Error: SubStr fails consistency test" );
-
- save = *e;
- *e = '\0';
- s = DmStrDup( s );
- *e = save;
-
- return( s );
-}
-
-
-/* Provide "missing" string function. */
-#ifndef HAVE_STRLWR
-char *
-strlwr(char *s)
-{
- char *p;
- for(p=s; *p; p++ )
- *p = tolower(*p);
- return s;
-}
-#endif
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