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/*
* tags file symbol lookup
* Copyright
* (C) 1992 Joseph H. Allen
*
* This file is part of JOE (Joe's Own Editor)
*/
#include "types.h"
static int dotag(BW *bw, unsigned char *s, void *obj, int *notify)
{
unsigned char buf[512];
unsigned char buf1[512];
FILE *f;
unsigned char *t = NULL;
if (notify) {
*notify = 1;
}
if (bw->b->name) {
t = vsncpy(t, 0, sz(bw->b->name));
t = vsncpy(sv(t), sc(":"));
t = vsncpy(sv(t), sv(s));
}
/* first try to open the tags file in the current directory */
f = fopen("tags", "r");
if (!f) {
/* if there's no tags file in the current dir, then query
for the environment variable TAGS.
*/
char *tagspath = getenv("TAGS");
if(tagspath){
f = fopen(tagspath, "r");
}
if(!f){
msgnw(bw->parent, joe_gettext(_("Couldn't open tags file")));
vsrm(s);
vsrm(t);
return -1;
}
}
while (fgets((char *)buf, 512, f)) {
int x, y, c;
for (x = 0; buf[x] && buf[x] != ' ' && buf[x] != '\t'; ++x) ;
c = buf[x];
buf[x] = 0;
if (!zcmp(s, buf) || (t && !zcmp(t, buf))) {
buf[x] = c;
while (buf[x] == ' ' || buf[x] == '\t') {
++x;
}
for (y = x; buf[y] && buf[y] != ' ' && buf[y] != '\t' && buf[y] != '\n'; ++y) ;
if (x != y) {
c = buf[y];
buf[y] = 0;
if (doswitch(bw, vsncpy(NULL, 0, sz(buf + x)), NULL, NULL)) {
vsrm(s);
vsrm(t);
fclose(f);
return -1;
}
bw = (BW *) maint->curwin->object;
p_goto_bof(bw->cursor);
buf[y] = c;
while (buf[y] == ' ' || buf[y] == '\t') {
++y;
}
for (x = y; buf[x] && buf[x] != '\n'; ++x) ;
buf[x] = 0;
if (x != y) {
long line = 0;
if (buf[y] >= '0' && buf[y] <= '9') {
/* It's a line number */
sscanf((char *)(buf + y), "%ld", &line);
if (line >= 1) {
int omid = mid;
mid = 1;
pline(bw->cursor, line - 1), bw->cursor->xcol = piscol(bw->cursor);
dofollows();
mid = omid;
} else {
msgnw(bw->parent, joe_gettext(_("Invalid line number")));
}
} else {
int z = 0;
/* It's a search string. New versions of
ctags have real regex with vi command. Old
ones do not always quote / and depend on it
being last char on line. */
if (buf[y] == '/' || buf[y] == '?') {
int ch = buf[y++];
/* Find terminating / or ? */
for (x = y + zlen(buf + y); x != y; --x)
if (buf[x] == ch)
break;
/* Copy characters, convert to JOE regex... */
if (buf[y] == '^') {
buf1[z++] = '\\';
buf1[z++] = '^';
++y;
}
while (buf[y] && buf[y] != '\n' && !(buf[y] == ch && y == x)) {
if (buf[y] == '$' && buf[y+1] == ch) {
++y;
buf1[z++] = '\\';
buf1[z++] = '$';
} else if (buf[y] == '\\' && buf[y+1]) {
/* This is going to cause problem...
old ctags did not have escape */
++y;
if (buf[y] == '\\')
buf1[z++] = '\\';
buf1[z++] = buf[y++];
} else {
buf1[z++] = buf[y++];
}
}
}
if (z) {
vsrm(s);
vsrm(t);
fclose(f);
buf1[z] = 0;
return dopfnext(bw, mksrch(vsncpy(NULL, 0, sz(buf1)), NULL, 0, 0, -1, 0, 0, 0), NULL);
}
}
}
vsrm(s);
vsrm(t);
fclose(f);
return 0;
}
}
}
msgnw(bw->parent, joe_gettext(_("Not found")));
vsrm(s);
vsrm(t);
fclose(f);
return -1;
}
static unsigned char **get_tag_list()
{
unsigned char buf[512];
unsigned char tag[512];
int i,pos;
FILE *f;
unsigned char **lst = NULL;
f = fopen("tags", "r");
if (f) {
while (fgets((char *)buf, 512, f)) {
pos = 0;
for (i=0; i<512; i++) {
if (buf[i] == ' ' || buf[i] == '\t') {
pos = i;
i = 512;
}
}
if (pos > 0) {
zncpy(tag, buf, pos);
tag[pos] = '\0';
}
lst = vaadd(lst, vsncpy(NULL, 0, sz(tag)));
}
fclose(f);
}
return lst;
}
static unsigned char **tag_word_list;
static int tag_cmplt(BW *bw)
{
/* Reload every time: we should really check date of tags file...
if (tag_word_list)
varm(tag_word_list); */
if (!tag_word_list)
tag_word_list = get_tag_list();
if (!tag_word_list) {
ttputc(7);
return 0;
}
return simple_cmplt(bw,tag_word_list);
}
static B *taghist = NULL;
int utag(BW *bw)
{
BW *pbw;
pbw = wmkpw(bw->parent, joe_gettext(_("Tag search: ")), &taghist, dotag, NULL, NULL, tag_cmplt, NULL, NULL, locale_map, 0);
if (pbw && joe_isalnum_(bw->b->o.charmap,brch(bw->cursor))) {
P *p = pdup(bw->cursor, USTR "utag");
P *q = pdup(p, USTR "utag");
int c;
while (joe_isalnum_(bw->b->o.charmap,(c = prgetc(p))))
/* do nothing */;
if (c != NO_MORE_DATA) {
pgetc(p);
}
pset(q, p);
while (joe_isalnum_(bw->b->o.charmap,(c = pgetc(q))))
/* do nothing */;
if (c != NO_MORE_DATA) {
prgetc(q);
}
binsb(pbw->cursor, bcpy(p, q));
pset(pbw->cursor, pbw->b->eof);
pbw->cursor->xcol = piscol(pbw->cursor);
prm(p);
prm(q);
}
if (pbw) {
return 0;
} else {
return -1;
}
}
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