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#include "wily.h"
#include "view.h"
#include "text.h"
#include <string.h>
#include <ctype.h>
/* The tag for a window contains: a label then whitespace, then some
* system-maintained tools, then a pipe symbol, then user stuff.
*/
static char * whitespace_regexp = "[ \t\n]+";
static Range tag_findtool(Text *, char*);
static Bool wily_modifying_tag = false;
/************************************************
Gettools and Settools only used by the messaging interface.
It's still up in the air what exactly they should do.
TODO - ensure space before/after "|" separator.
************************************************/
char*
tag_gettools(Text*t){
Range r;
r = nr;
if(text_utfregexp(t, "\\|.*", &r, true)) {
r.p0++;
return text_duputf(t, r);
} else {
return "";
}
}
void
tag_settools(Text*t, char*s) {
Range r = nr;
ulong len;
if(text_utfregexp(t, "\\|.*", &r, true)) {
r.p0++;
} else {
len = text_length(t);
r = range(len,len);
}
text_replaceutf(t,r,s);
}
void
tag_set(Text*t, char*s) {
assert(TEXT_ISTAG(t));
wily_modifying_tag = true;
text_replaceutf(t, text_all(t), s);
wily_modifying_tag = false;
}
void
tag_setlabel(Text *t, char *s)
{
Range r;
Path buf;
ulong l;
wily_modifying_tag = true;
/* find first whitespace_regexp */
r = range(0,0);
if(! text_utfregexp(t, whitespace_regexp, &r, true)) {
l = text_length(t);
r = range(l,l);
}
r.p0 = 0;
sprintf(buf, "%s ", s);
text_replaceutf(t, r, buf);
wily_modifying_tag = false;
}
/* Remove 's' from the tool section of tag 't', if it exists there.
*/
void
tag_rmtool(Text *t, char *s)
{
Range r;
wily_modifying_tag = true;
r = tag_findtool(t, s);
if(RLEN(r))
text_replace(t, r, rstring(0,0));
if(STRSAME(s,"Put"))
text_fillbutton(t, Zero);
wily_modifying_tag = false;
}
/* Replace 'r' in 't' with 's' and a trailing space */
static void
place_tool(Text*t, Range r, char*s) {
Path tmp;
sprintf(tmp, "%s ", s);
text_replaceutf(t,r,tmp);
}
/*
* Add a string to represent a running command to 't'.
*
* Almost the same as tag_addtool, the difference being
* that tag_addrunning will create duplicates, e.g. the
* tag could read "xterm xterm "
*/
void
tag_addrunning(Text *t, char *cmd) {
Range r;
r = tag_findtool(t,cmd);
r.p0 = r.p1; /* don't replace */
place_tool(t,r,cmd);
}
/* Add 's' to the tool section of tag 't', unless it's there already.
*/
void
tag_addtool(Text *t, char *s)
{
Range r;
wily_modifying_tag = true;
r = tag_findtool(t,s);
if(!RLEN(r))
place_tool(t,r,s);
if(STRSAME(s,"Put"))
text_fillbutton(t, F);
wily_modifying_tag = false;
}
/* If 's' is in the system tools section of t, return the range
* containing 's' and all the immediately following whitespace.
* Otherwise return a 0-length range where the next tool
* should be inserted.
*/
static Range
tag_findtool(Text*t, char*s)
{
Range pos, endpos;
ulong l;
endpos = pos = nr;
if(text_findliteralutf(t, &endpos, "|")) {
endpos.p1 = endpos.p0;
} else {
l = text_length(t);
endpos = range(l,l);
}
if(text_findwordutf(t, &pos, s) && pos.p0 < endpos.p0)
return pos;
return endpos;
}
/*
* 't' has been modified in some fashion. 'p' is the index of the
* most recently modified character.
*/
void
tag_modified(Text*t, ulong p)
{
Range r;
Path buf;
int n;
assert(t->data && !t->isbody);
if( wily_modifying_tag)
return;
/* find first whitespace_regexp */
r = nr;
if(text_utfregexp(t, whitespace_regexp, &r, true)) {
if(p>r.p0)
return;
r.p1 = r.p0;
r.p0 = 0;
} else {
r = text_all(t);
}
n = text_copyutf(t, r, buf);
buf[n] = 0;
data_setlabel(text_data(t), buf);
}
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