Annotation of src/usr.bin/mg/grep.c, Revision 1.1
1.1 ! art 1: /* $OpenBSD$ */
! 2: /*
! 3: * Copyright (c) 2001 Artur Grabowski <art@openbsd.org>. All rights reserved.
! 4: *
! 5: * Redistribution and use in source and binary forms, with or without
! 6: * modification, are permitted provided that the following conditions
! 7: * are met:
! 8: * 1. Redistributions of source code must retain the above copyright
! 9: * notice, this list of conditions and the following disclaimer.
! 10: * 2. Redistributions in binary form must reproduce the above copyright
! 11: * notice, this list of conditions and the following disclaimer in the
! 12: * documentation and/or other materials provided with the distribution.
! 13: *
! 14: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 15: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 16: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 17: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 18: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 19: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 20: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 21: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 22: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 23: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 24: */
! 25:
! 26: #include "def.h"
! 27: #include "kbd.h"
! 28: #include "funmap.h"
! 29:
! 30: static int compile_goto_error(int f, int n);
! 31: static int next_error(int f, int n);
! 32: static int grep(int, int);
! 33: static int compile(int, int);
! 34: static int gid(int, int);
! 35: static BUFFER *compile_mode(char *name, char *command);
! 36:
! 37:
! 38: void grep_init(void);
! 39:
! 40: /*
! 41: * Hints for next-error
! 42: *
! 43: * XXX - need some kind of callback to find out when those get killed.
! 44: */
! 45: MGWIN *compile_win;
! 46: BUFFER *compile_buffer;
! 47:
! 48: static PF compile_pf[] = {
! 49: compile_goto_error,
! 50: };
! 51:
! 52: static struct KEYMAPE (1 + IMAPEXT) compilemap = {
! 53: 1,
! 54: 1 + IMAPEXT,
! 55: rescan,
! 56: {
! 57: { CCHR('M'), CCHR('M'), compile_pf, NULL },
! 58: }
! 59: };
! 60:
! 61: void
! 62: grep_init(void)
! 63: {
! 64: funmap_add(compile_goto_error, "compile-goto-error");
! 65: funmap_add(next_error, "next-error");
! 66: funmap_add(grep, "grep");
! 67: funmap_add(compile, "compile");
! 68: funmap_add(gid, "gid");
! 69: maps_add((KEYMAP *)&compilemap, "compile");
! 70: }
! 71:
! 72: static int
! 73: grep(int f, int n)
! 74: {
! 75: char command[NFILEN + 20];
! 76: char prompt[NFILEN];
! 77: BUFFER *bp;
! 78: MGWIN *wp;
! 79:
! 80: strcpy(prompt, "grep -n ");
! 81: if (eread("Run grep: ", prompt, NFILEN, EFDEF|EFNEW|EFCR) == ABORT)
! 82: return ABORT;
! 83:
! 84: sprintf(command, "%s /dev/null", prompt);
! 85:
! 86: if ((bp = compile_mode("*grep*", command)) == NULL)
! 87: return FALSE;
! 88: if ((wp = popbuf(bp)) == NULL)
! 89: return FALSE;
! 90: curbp = bp;
! 91: compile_win = curwp = wp;
! 92: return TRUE;
! 93: }
! 94:
! 95: static int
! 96: compile(int f, int n)
! 97: {
! 98: char command[NFILEN + 20];
! 99: char prompt[NFILEN];
! 100: BUFFER *bp;
! 101: MGWIN *wp;
! 102:
! 103: strcpy(prompt, "make ");
! 104: if (eread("Compile command: ", prompt, NFILEN, EFDEF|EFNEW|EFCR) == ABORT)
! 105: return ABORT;
! 106:
! 107: sprintf(command, "%s 2>&1", prompt);
! 108:
! 109: if ((bp = compile_mode("*compile*", command)) == NULL)
! 110: return FALSE;
! 111: if ((wp = popbuf(bp)) == NULL)
! 112: return FALSE;
! 113: curbp = bp;
! 114: compile_win = curwp = wp;
! 115: return TRUE;
! 116: }
! 117:
! 118: /* id-utils foo. */
! 119: static int
! 120: gid(int f, int n)
! 121: {
! 122: char command[NFILEN + 20];
! 123: char prompt[NFILEN];
! 124: BUFFER *bp;
! 125: MGWIN *wp;
! 126:
! 127: if (eread("Run gid (with args): ", prompt, NFILEN, EFNEW|EFCR) == ABORT)
! 128: return ABORT;
! 129:
! 130: sprintf(command, "gid %s", prompt);
! 131:
! 132: if ((bp = compile_mode("*gid*", command)) == NULL)
! 133: return FALSE;
! 134: if ((wp = popbuf(bp)) == NULL)
! 135: return FALSE;
! 136: curbp = bp;
! 137: compile_win = curwp = wp;
! 138: return TRUE;
! 139: }
! 140:
! 141: BUFFER *
! 142: compile_mode(char *name, char *command)
! 143: {
! 144: BUFFER *bp;
! 145: FILE *pipe;
! 146: char *buf;
! 147: size_t len;
! 148: int ret;
! 149:
! 150: bp = bfind(name, TRUE);
! 151: if (bclear(bp) != TRUE)
! 152: return NULL;
! 153:
! 154: addlinef(bp, "Running (%s).", command);
! 155: addline(bp, "");
! 156:
! 157: if ((pipe = popen(command, "r")) == NULL) {
! 158: ewprintf("Problem opening pipe");
! 159: return NULL;
! 160: }
! 161: /*
! 162: * We know that our commands are nice and the last line will end with
! 163: * a \n, so we don't need to try to deal with the last line problem
! 164: * in fgetln.
! 165: */
! 166: while ((buf = fgetln(pipe, &len)) != NULL) {
! 167: buf[len - 1] = '\0';
! 168: addline(bp, buf);
! 169: }
! 170: ret = pclose(pipe);
! 171: addline(bp, "");
! 172: addlinef(bp, "Command (%s) completed %s.", command,
! 173: ret == 0 ? "successfully" : "with errors");
! 174: bp->b_dotp = lforw(bp->b_linep); /* go to first line */
! 175: bp->b_modes[0] = name_mode("fundamental");
! 176: bp->b_modes[1] = name_mode("compile");
! 177: bp->b_nmodes = 1;
! 178:
! 179: compile_buffer = bp;
! 180:
! 181: return bp;
! 182: }
! 183:
! 184: static int
! 185: compile_goto_error(int f, int n)
! 186: {
! 187: BUFFER *bp;
! 188: MGWIN *wp;
! 189: char *fname, *line, *lp, *ln, *lp1;
! 190: int lineno, len;
! 191: char *adjf;
! 192:
! 193: compile_win = curwp;
! 194: compile_buffer = curbp;
! 195:
! 196: retry:
! 197: len = llength(curwp->w_dotp);
! 198:
! 199: if ((line = malloc(len + 1)) == NULL)
! 200: return FALSE;
! 201:
! 202: memcpy(line, curwp->w_dotp->l_text, len);
! 203: line[len] = '\0';
! 204:
! 205: lp = line;
! 206: if ((fname = strsep(&lp, ":")) == NULL)
! 207: goto fail;
! 208: if ((ln = strsep(&lp, ":")) == NULL)
! 209: goto fail;
! 210: lineno = strtol(ln, &lp1, 10);
! 211: if (lp != lp1 + 1)
! 212: goto fail;
! 213: free(line);
! 214:
! 215: adjf = adjustname(fname);
! 216: if ((bp = findbuffer(adjf)) == NULL)
! 217: return FALSE;
! 218: if ((wp = popbuf(bp)) == NULL)
! 219: return FALSE;
! 220: curbp = bp;
! 221: curwp = wp;
! 222: if (bp->b_fname[0] == 0)
! 223: readin(adjf);
! 224: gotoline(FFARG, lineno);
! 225: return TRUE;
! 226: fail:
! 227: free(line);
! 228: if (curwp->w_dotp != lback(curbp->b_linep)) {
! 229: curwp->w_dotp = lforw(curwp->w_dotp);
! 230: curwp->w_flag |= WFMOVE;
! 231: goto retry;
! 232: }
! 233: ewprintf("No more hits");
! 234: return FALSE;
! 235: }
! 236:
! 237: static int
! 238: next_error(int f, int n)
! 239: {
! 240: if (compile_win == NULL || compile_buffer == NULL) {
! 241: ewprintf("No compilation active");
! 242: return FALSE;
! 243: }
! 244: curwp = compile_win;
! 245: curbp = compile_buffer;
! 246: if (curwp->w_dotp == lback(curbp->b_linep)) {
! 247: ewprintf("No more hits");
! 248: return FALSE;
! 249: }
! 250: curwp->w_dotp = lforw(curwp->w_dotp);
! 251: curwp->w_flag |= WFMOVE;
! 252:
! 253: return compile_goto_error(f, n);
! 254: }
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