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add new | syntax.

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syntax will change.
This commit is contained in:
rsc 2005-01-04 22:41:27 +00:00
parent 02f38ca68c
commit 9aa1c92f74
19 changed files with 281 additions and 83 deletions
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35
src/cmd/mk/rc.c
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@ -1,9 +1,5 @@
#include "mk.h"
char *termchars = "'= \t"; /*used in parse.c to isolate assignment attribute*/
char *shflags = "-I"; /* rc flag to force non-interactive mode */
int IWS = '\1'; /* inter-word separator in env - not used in plan 9 */
/*
* This file contains functions that depend on rc's syntax. Most
* of the routines extract strings observing rc's escape conventions
@ -38,7 +34,7 @@ squote(char *cp)
* characters in quotes and variable generators are escaped
*/
char *
charin(char *cp, char *pat)
rccharin(char *cp, char *pat)
{
Rune r;
int n, vargen;
@ -82,7 +78,7 @@ charin(char *cp, char *pat)
* others are just inserted into the receiving buffer.
*/
char*
expandquote(char *s, Rune r, Bufblock *b)
rcexpandquote(char *s, Rune r, Bufblock *b)
{
if (r != '\'') {
rinsert(b, r);
@ -108,7 +104,7 @@ expandquote(char *s, Rune r, Bufblock *b)
* rc; the others are just inserted into the receiving buffer.
*/
int
escapetoken(Biobuf *bp, Bufblock *buf, int preserve, int esc)
rcescapetoken(Biobuf *bp, Bufblock *buf, int preserve, int esc)
{
int c, line;
@ -155,7 +151,7 @@ copysingle(char *s, Bufblock *buf)
* s points to char after opening quote, q.
*/
char *
copyq(char *s, Rune q, Bufblock *buf)
rccopyq(char *s, Rune q, Bufblock *buf)
{
if(q == '\'') /* copy quoted string */
return copysingle(s, buf);
@ -173,3 +169,26 @@ copyq(char *s, Rune q, Bufblock *buf)
}
return s;
}
static int
rcmatchname(char *name)
{
char *p;
if((p = strchr(name, '/')) != nil)
name = p+1;
if(name[0] == 'r' && name[1] == 'c')
return 1;
return 0;
}
Shell rcshell = {
"rc",
"'= \t",
'\1',
rccharin,
rcexpandquote,
rcescapetoken,
rccopyq,
rcmatchname,
};