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/* $OpenBSD: grep.c,v 1.2 2001/11/25 07:34:17 deraadt Exp $ */
/*
* Copyright (c) 2001 Artur Grabowski <art@openbsd.org>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "def.h"
#include "kbd.h"
#include "funmap.h"
static int compile_goto_error(int f, int n);
static int next_error(int f, int n);
static int grep(int, int);
static int compile(int, int);
static int gid(int, int);
static BUFFER *compile_mode(char *name, char *command);
void grep_init(void);
/*
* Hints for next-error
*
* XXX - need some kind of callback to find out when those get killed.
*/
MGWIN *compile_win;
BUFFER *compile_buffer;
static PF compile_pf[] = {
compile_goto_error,
};
static struct KEYMAPE (1 + IMAPEXT) compilemap = {
1,
1 + IMAPEXT,
rescan,
{
{ CCHR('M'), CCHR('M'), compile_pf, NULL },
}
};
void
grep_init(void)
{
funmap_add(compile_goto_error, "compile-goto-error");
funmap_add(next_error, "next-error");
funmap_add(grep, "grep");
funmap_add(compile, "compile");
funmap_add(gid, "gid");
maps_add((KEYMAP *)&compilemap, "compile");
}
static int
grep(int f, int n)
{
char command[NFILEN + 20];
char prompt[NFILEN];
BUFFER *bp;
MGWIN *wp;
strlcpy(prompt, "grep -n ", sizeof prompt);
if (eread("Run grep: ", prompt, NFILEN, EFDEF|EFNEW|EFCR) == ABORT)
return ABORT;
snprintf(command, sizeof command, "%s /dev/null", prompt);
if ((bp = compile_mode("*grep*", command)) == NULL)
return FALSE;
if ((wp = popbuf(bp)) == NULL)
return FALSE;
curbp = bp;
compile_win = curwp = wp;
return TRUE;
}
static int
compile(int f, int n)
{
char command[NFILEN + 20];
char prompt[NFILEN];
BUFFER *bp;
MGWIN *wp;
strcpy(prompt, "make ");
if (eread("Compile command: ", prompt, NFILEN, EFDEF|EFNEW|EFCR) == ABORT)
return ABORT;
snprintf(command, sizeof command, "%s 2>&1", prompt);
if ((bp = compile_mode("*compile*", command)) == NULL)
return FALSE;
if ((wp = popbuf(bp)) == NULL)
return FALSE;
curbp = bp;
compile_win = curwp = wp;
return TRUE;
}
/* id-utils foo. */
static int
gid(int f, int n)
{
char command[NFILEN + 20];
char prompt[NFILEN];
BUFFER *bp;
MGWIN *wp;
if (eread("Run gid (with args): ", prompt, NFILEN, EFNEW|EFCR) == ABORT)
return ABORT;
snprintf(command, sizeof command, "gid %s", prompt);
if ((bp = compile_mode("*gid*", command)) == NULL)
return FALSE;
if ((wp = popbuf(bp)) == NULL)
return FALSE;
curbp = bp;
compile_win = curwp = wp;
return TRUE;
}
BUFFER *
compile_mode(char *name, char *command)
{
BUFFER *bp;
FILE *pipe;
char *buf;
size_t len;
int ret;
bp = bfind(name, TRUE);
if (bclear(bp) != TRUE)
return NULL;
addlinef(bp, "Running (%s).", command);
addline(bp, "");
if ((pipe = popen(command, "r")) == NULL) {
ewprintf("Problem opening pipe");
return NULL;
}
/*
* We know that our commands are nice and the last line will end with
* a \n, so we don't need to try to deal with the last line problem
* in fgetln.
*/
while ((buf = fgetln(pipe, &len)) != NULL) {
buf[len - 1] = '\0';
addline(bp, buf);
}
ret = pclose(pipe);
addline(bp, "");
addlinef(bp, "Command (%s) completed %s.", command,
ret == 0 ? "successfully" : "with errors");
bp->b_dotp = lforw(bp->b_linep); /* go to first line */
bp->b_modes[0] = name_mode("fundamental");
bp->b_modes[1] = name_mode("compile");
bp->b_nmodes = 1;
compile_buffer = bp;
return bp;
}
static int
compile_goto_error(int f, int n)
{
BUFFER *bp;
MGWIN *wp;
char *fname, *line, *lp, *ln, *lp1;
int lineno, len;
char *adjf;
compile_win = curwp;
compile_buffer = curbp;
retry:
len = llength(curwp->w_dotp);
if ((line = malloc(len + 1)) == NULL)
return FALSE;
memcpy(line, curwp->w_dotp->l_text, len);
line[len] = '\0';
lp = line;
if ((fname = strsep(&lp, ":")) == NULL)
goto fail;
if ((ln = strsep(&lp, ":")) == NULL)
goto fail;
lineno = strtol(ln, &lp1, 10);
if (lp != lp1 + 1)
goto fail;
free(line);
adjf = adjustname(fname);
if ((bp = findbuffer(adjf)) == NULL)
return FALSE;
if ((wp = popbuf(bp)) == NULL)
return FALSE;
curbp = bp;
curwp = wp;
if (bp->b_fname[0] == 0)
readin(adjf);
gotoline(FFARG, lineno);
return TRUE;
fail:
free(line);
if (curwp->w_dotp != lback(curbp->b_linep)) {
curwp->w_dotp = lforw(curwp->w_dotp);
curwp->w_flag |= WFMOVE;
goto retry;
}
ewprintf("No more hits");
return FALSE;
}
static int
next_error(int f, int n)
{
if (compile_win == NULL || compile_buffer == NULL) {
ewprintf("No compilation active");
return FALSE;
}
curwp = compile_win;
curbp = compile_buffer;
if (curwp->w_dotp == lback(curbp->b_linep)) {
ewprintf("No more hits");
return FALSE;
}
curwp->w_dotp = lforw(curwp->w_dotp);
curwp->w_flag |= WFMOVE;
return compile_goto_error(f, n);
}
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