head 1.5; access; symbols perseant-exfatfs-base-20250801:1.5 perseant-exfatfs-base-20240630:1.5 perseant-exfatfs:1.5.0.36 perseant-exfatfs-base:1.5 cjep_sun2x:1.5.0.34 cjep_sun2x-base:1.5 cjep_staticlib_x-base1:1.5 cjep_staticlib_x:1.5.0.32 cjep_staticlib_x-base:1.5 phil-wifi-20200421:1.5 phil-wifi-20200411:1.5 phil-wifi-20200406:1.5 pgoyette-compat-merge-20190127:1.5 pgoyette-compat-20190127:1.5 pgoyette-compat-20190118:1.5 pgoyette-compat-1226:1.5 pgoyette-compat-1126:1.5 pgoyette-compat-1020:1.5 pgoyette-compat-0930:1.5 pgoyette-compat-0906:1.5 pgoyette-compat-0728:1.5 pgoyette-compat-0625:1.5 pgoyette-compat-0521:1.5 pgoyette-compat-0502:1.5 pgoyette-compat-0422:1.5 pgoyette-compat-0415:1.5 pgoyette-compat-0407:1.5 pgoyette-compat-0330:1.5 pgoyette-compat-0322:1.5 pgoyette-compat-0315:1.5 pgoyette-compat:1.5.0.30 pgoyette-compat-base:1.5 perseant-stdc-iso10646:1.5.0.28 perseant-stdc-iso10646-base:1.5 prg-localcount2-base3:1.5 prg-localcount2-base2:1.5 prg-localcount2-base1:1.5 prg-localcount2:1.5.0.26 prg-localcount2-base:1.5 pgoyette-localcount-20170426:1.5 bouyer-socketcan-base1:1.5 pgoyette-localcount-20170320:1.5 bouyer-socketcan:1.5.0.24 bouyer-socketcan-base:1.5 pgoyette-localcount-20170107:1.5 pgoyette-localcount-20161104:1.5 localcount-20160914:1.5 pgoyette-localcount-20160806:1.5 pgoyette-localcount-20160726:1.5 pgoyette-localcount:1.5.0.22 pgoyette-localcount-base:1.5 netbsd-5-2-3-RELEASE:1.5 netbsd-5-1-5-RELEASE:1.5 yamt-pagecache-base9:1.5 yamt-pagecache-tag8:1.5 tls-earlyentropy:1.5.0.18 tls-earlyentropy-base:1.5 riastradh-xf86-video-intel-2-7-1-pre-2-21-15:1.5 riastradh-drm2-base3:1.5 netbsd-5-2-2-RELEASE:1.5 netbsd-5-1-4-RELEASE:1.5 netbsd-5-2-1-RELEASE:1.5 netbsd-5-1-3-RELEASE:1.5 agc-symver:1.5.0.20 agc-symver-base:1.5 tls-maxphys-base:1.5 yamt-pagecache-base8:1.5 netbsd-5-2:1.5.0.16 yamt-pagecache-base7:1.5 netbsd-5-2-RELEASE:1.5 netbsd-5-2-RC1:1.5 yamt-pagecache-base6:1.5 yamt-pagecache-base5:1.5 yamt-pagecache-base4:1.5 netbsd-5-1-2-RELEASE:1.5 netbsd-5-1-1-RELEASE:1.5 yamt-pagecache-base3:1.5 yamt-pagecache-base2:1.5 yamt-pagecache:1.5.0.14 yamt-pagecache-base:1.5 bouyer-quota2-nbase:1.5 bouyer-quota2:1.5.0.12 bouyer-quota2-base:1.5 matt-nb5-pq3:1.5.0.10 matt-nb5-pq3-base:1.5 netbsd-5-1:1.5.0.8 netbsd-5-1-RELEASE:1.5 netbsd-5-1-RC4:1.5 netbsd-5-1-RC3:1.5 netbsd-5-1-RC2:1.5 netbsd-5-1-RC1:1.5 netbsd-5-0-2-RELEASE:1.5 netbsd-5-0-1-RELEASE:1.5 jym-xensuspend-nbase:1.5 netbsd-5-0:1.5.0.6 netbsd-5-0-RELEASE:1.5 netbsd-5-0-RC4:1.5 netbsd-5-0-RC3:1.5 netbsd-5-0-RC2:1.5 jym-xensuspend:1.5.0.4 jym-xensuspend-base:1.5 netbsd-5-0-RC1:1.5 netbsd-5:1.5.0.2 netbsd-5-base:1.5 matt-mips64-base2:1.4 matt-mips64:1.4.0.40 mjf-devfs2:1.4.0.38 mjf-devfs2-base:1.4 netbsd-4-0-1-RELEASE:1.4 wrstuden-revivesa-base-3:1.4 wrstuden-revivesa-base-2:1.4 wrstuden-fixsa-newbase:1.4 wrstuden-revivesa-base-1:1.4 yamt-pf42-base4:1.4 yamt-pf42-base3:1.4 hpcarm-cleanup-nbase:1.4 yamt-pf42-baseX:1.4 yamt-pf42-base2:1.4 wrstuden-revivesa:1.4.0.36 wrstuden-revivesa-base:1.4 yamt-pf42:1.4.0.34 yamt-pf42-base:1.4 keiichi-mipv6-nbase:1.4 keiichi-mipv6:1.4.0.32 keiichi-mipv6-base:1.4 matt-armv6-nbase:1.4 matt-armv6-prevmlocking:1.4 wrstuden-fixsa-base-1:1.4 netbsd-4-0:1.4.0.30 netbsd-4-0-RELEASE:1.4 cube-autoconf:1.4.0.28 cube-autoconf-base:1.4 netbsd-4-0-RC5:1.4 netbsd-4-0-RC4:1.4 netbsd-4-0-RC3:1.4 netbsd-4-0-RC2:1.4 netbsd-4-0-RC1:1.4 matt-armv6:1.4.0.26 matt-armv6-base:1.4 matt-mips64-base:1.4 hpcarm-cleanup:1.4.0.24 hpcarm-cleanup-base:1.4 netbsd-3-1-1-RELEASE:1.4 netbsd-3-0-3-RELEASE:1.4 wrstuden-fixsa:1.4.0.22 wrstuden-fixsa-base:1.4 abandoned-netbsd-4-base:1.4 abandoned-netbsd-4:1.4.0.16 netbsd-3-1:1.4.0.18 netbsd-3-1-RELEASE:1.4 netbsd-3-0-2-RELEASE:1.4 netbsd-3-1-RC4:1.4 netbsd-3-1-RC3:1.4 netbsd-3-1-RC2:1.4 netbsd-3-1-RC1:1.4 netbsd-4:1.4.0.20 netbsd-4-base:1.4 chap-midi-nbase:1.4 netbsd-3-0-1-RELEASE:1.4 chap-midi:1.4.0.14 chap-midi-base:1.4 netbsd-3-0:1.4.0.12 netbsd-3-0-RELEASE:1.4 netbsd-3-0-RC6:1.4 netbsd-3-0-RC5:1.4 netbsd-3-0-RC4:1.4 netbsd-3-0-RC3:1.4 netbsd-3-0-RC2:1.4 netbsd-3-0-RC1:1.4 netbsd-2-0-3-RELEASE:1.4 netbsd-2-1:1.4.0.10 netbsd-2-1-RELEASE:1.4 netbsd-2-1-RC6:1.4 netbsd-2-1-RC5:1.4 netbsd-2-1-RC4:1.4 netbsd-2-1-RC3:1.4 netbsd-2-1-RC2:1.4 netbsd-2-1-RC1:1.4 netbsd-2-0-2-RELEASE:1.4 netbsd-3:1.4.0.8 netbsd-3-base:1.4 netbsd-2-0-1-RELEASE:1.4 netbsd-2:1.4.0.6 netbsd-2-base:1.4 netbsd-2-0-RELEASE:1.4 netbsd-2-0-RC5:1.4 netbsd-2-0-RC4:1.4 netbsd-2-0-RC3:1.4 netbsd-2-0-RC2:1.4 netbsd-2-0-RC1:1.4 netbsd-2-0:1.4.0.4 netbsd-2-0-base:1.4 netbsd-1-6-PATCH002-RELEASE:1.4 netbsd-1-6-PATCH002:1.4 netbsd-1-6-PATCH002-RC4:1.4 netbsd-1-6-PATCH002-RC3:1.4 netbsd-1-6-PATCH002-RC2:1.4 netbsd-1-6-PATCH002-RC1:1.4 netbsd-1-6-PATCH001:1.4 netbsd-1-6-PATCH001-RELEASE:1.4 netbsd-1-6-PATCH001-RC3:1.4 netbsd-1-6-PATCH001-RC2:1.4 netbsd-1-6-PATCH001-RC1:1.4 fvdl_fs64_base:1.4 netbsd-1-6-RELEASE:1.4 netbsd-1-6-RC3:1.4 netbsd-1-6-RC2:1.4 netbsd-1-6-RC1:1.4 netbsd-1-6:1.4.0.2 netbsd-1-6-base:1.4 netbsd-1-5-PATCH003:1.2 netbsd-1-5-PATCH002:1.2 netbsd-1-5-PATCH001:1.2 nvi_1_79:1.1.1.4 netbsd-1-5-RELEASE:1.2 netbsd-1-5-BETA2:1.2 netbsd-1-5-BETA:1.2 netbsd-1-4-PATCH003:1.2 netbsd-1-5-ALPHA2:1.2 netbsd-1-5:1.2.0.10 netbsd-1-5-base:1.2 minoura-xpg4dl-base:1.2 minoura-xpg4dl:1.2.0.8 netbsd-1-4-PATCH002:1.2 wrstuden-devbsize-19991221:1.2 wrstuden-devbsize:1.2.0.6 wrstuden-devbsize-base:1.2 comdex-fall-1999:1.2.0.4 comdex-fall-1999-base:1.2 netbsd-1-4-PATCH001:1.2 netbsd-1-4-RELEASE:1.2 netbsd-1-4:1.2.0.2 netbsd-1-4-base:1.2 netbsd-1-3-PATCH003:1.1.1.3 netbsd-1-3-PATCH003-CANDIDATE2:1.1.1.3 netbsd-1-3-PATCH003-CANDIDATE1:1.1.1.3 netbsd-1-3-PATCH003-CANDIDATE0:1.1.1.3 netbsd-1-3-PATCH002:1.1.1.3 netbsd-1-3-PATCH001:1.1.1.3 netbsd-1-3-RELEASE:1.1.1.3 netbsd-1-3-BETA:1.1.1.3 netbsd-1-3:1.1.1.3.0.2 netbsd-1-3-base:1.1.1.3 netbsd-1-2-PATCH001:1.1.1.3 netbsd-1-2-RELEASE:1.1.1.3 netbsd-1-2-BETA:1.1.1.3 netbsd-1-2:1.1.1.3.0.4 netbsd-1-2-base:1.1.1.3 nvi_1_66:1.1.1.3 BOSTIC:1.1.1 netbsd-1-1-PATCH001:1.1.1.2 netbsd-1-1-RELEASE:1.1.1.2 netbsd-1-1:1.1.1.2.0.4 netbsd-1-1-base:1.1.1.2 netbsd-1-0-PATCH06:1.1.1.2 netbsd-1-0-PATCH05:1.1.1.2 netbsd-1-0-PATCH04:1.1.1.2 netbsd-1-0-PATCH03:1.1.1.2 netbsd-1-0-PATCH02:1.1.1.2 netbsd-1-0-PATCH1:1.1.1.2 netbsd-1-0-PATCH0:1.1.1.2 netbsd-1-0-RELEASE:1.1.1.2 netbsd-1-0:1.1.1.2.0.2 nvi-1-34b:1.1.1.2 nvi-1-33b:1.1.1.1 bostic-nvi:1.1.1; locks; strict; comment @ * @; 1.5 date 2008.10.29.16.49.35; author christos; state dead; branches; next 1.4; 1.4 date 2002.04.09.01.47.32; author thorpej; state Exp; branches; next 1.3; 1.3 date 2001.03.31.11.37.47; author aymeric; state Exp; branches; next 1.2; 1.2 date 98.01.09.08.07.11; author perry; state Exp; branches; next 1.1; 1.1 date 94.08.17.16.19.06; author cgd; state Exp; branches 1.1.1.1; next ; 1.1.1.1 date 94.08.17.16.19.07; author cgd; state Exp; branches; next 1.1.1.2; 1.1.1.2 date 94.08.17.19.26.16; author cgd; state Exp; branches 1.1.1.2.2.1; next 1.1.1.3; 1.1.1.3 date 96.05.20.02.06.08; author mrg; state Exp; branches; next 1.1.1.4; 1.1.1.4 date 2001.03.31.11.30.03; author aymeric; state Exp; branches; next ; 1.1.1.2.2.1 date 94.08.17.19.26.16; author cgd; state dead; branches; next 1.1.1.2.2.2; 1.1.1.2.2.2 date 94.08.17.19.26.17; author cgd; state Exp; branches; next ; desc @@ 1.5 log @bye old vi! @ text @/* $NetBSD: util.c,v 1.4 2002/04/09 01:47:32 thorpej Exp $ */ /*- * Copyright (c) 1991, 1993, 1994 * The Regents of the University of California. All rights reserved. * Copyright (c) 1991, 1993, 1994, 1995, 1996 * Keith Bostic. All rights reserved. * * See the LICENSE file for redistribution information. */ #include "config.h" #include #ifndef lint #if 0 static const char sccsid[] = "@@(#)util.c 10.11 (Berkeley) 9/15/96"; #else __RCSID("$NetBSD: util.c,v 1.4 2002/04/09 01:47:32 thorpej Exp $"); #endif #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include "common.h" /* * binc -- * Increase the size of a buffer. * * PUBLIC: void *binc __P((SCR *, void *, size_t *, size_t)); */ void * binc(sp, bp, bsizep, min) SCR *sp; /* sp MAY BE NULL!!! */ void *bp; size_t *bsizep, min; { size_t csize; /* If already larger than the minimum, just return. */ if (min && *bsizep >= min) return (bp); csize = *bsizep + MAX(min, 256); REALLOC(sp, bp, void *, csize); if (bp == NULL) { /* * Theoretically, realloc is supposed to leave any already * held memory alone if it can't get more. Don't trust it. */ *bsizep = 0; return (NULL); } /* * Memory is guaranteed to be zero-filled, various parts of * nvi depend on this. */ memset((char *)bp + *bsizep, 0, csize - *bsizep); *bsizep = csize; return (bp); } /* * nonblank -- * Set the column number of the first non-blank character * including or after the starting column. On error, set * the column to 0, it's safest. * * PUBLIC: int nonblank __P((SCR *, recno_t, size_t *)); */ int nonblank(sp, lno, cnop) SCR *sp; recno_t lno; size_t *cnop; { char *p; size_t cnt, len, off; int isempty; /* Default. */ off = *cnop; *cnop = 0; /* Get the line, succeeding in an empty file. */ if (db_eget(sp, lno, &p, &len, &isempty)) return (!isempty); /* Set the offset. */ if (len == 0 || off >= len) return (0); for (cnt = off, p = &p[off], len -= off; len && isblank(*p); ++cnt, ++p, --len); /* Set the return. */ *cnop = len ? cnt : cnt - 1; return (0); } /* * tail -- * Return tail of a path. * * PUBLIC: char *tail __P((char *)); */ char * tail(path) char *path; { char *p; if ((p = strrchr(path, '/')) == NULL) return (path); return (p + 1); } /* * v_strdup -- * Strdup for wide character strings with an associated length. * * PUBLIC: CHAR_T *v_strdup __P((SCR *, const CHAR_T *, size_t)); */ CHAR_T * v_strdup(sp, str, len) SCR *sp; const CHAR_T *str; size_t len; { CHAR_T *copy; MALLOC(sp, copy, CHAR_T *, len + 1); if (copy == NULL) return (NULL); memcpy(copy, str, len * sizeof(CHAR_T)); copy[len] = '\0'; return (copy); } /* * nget_uslong -- * Get an unsigned long, checking for overflow. * * PUBLIC: enum nresult nget_uslong __P((u_long *, const char *, char **, int)); */ enum nresult nget_uslong(valp, p, endp, base) u_long *valp; const char *p; char **endp; int base; { errno = 0; *valp = strtoul(p, endp, base); if (errno == 0) return (NUM_OK); if (errno == ERANGE && *valp == ULONG_MAX) return (NUM_OVER); return (NUM_ERR); } /* * nget_slong -- * Convert a signed long, checking for overflow and underflow. * * PUBLIC: enum nresult nget_slong __P((long *, const char *, char **, int)); */ enum nresult nget_slong(valp, p, endp, base) long *valp; const char *p; char **endp; int base; { errno = 0; *valp = strtol(p, endp, base); if (errno == 0) return (NUM_OK); if (errno == ERANGE) { if (*valp == LONG_MAX) return (NUM_OVER); if (*valp == LONG_MIN) return (NUM_UNDER); } return (NUM_ERR); } #ifdef DEBUG #ifdef __STDC__ #include #else #include #endif /* * TRACE -- * debugging trace routine. * * PUBLIC: void TRACE __P((SCR *, const char *, ...)); */ void #ifdef __STDC__ TRACE(SCR *sp, const char *fmt, ...) #else TRACE(sp, fmt, va_alist) SCR *sp; char *fmt; va_dcl #endif { FILE *tfp; va_list ap; if ((tfp = sp->gp->tracefp) == NULL) return; #ifdef __STDC__ va_start(ap, fmt); #else va_start(ap); #endif (void)vfprintf(tfp, fmt, ap); va_end(ap); (void)fflush(tfp); } #endif @ 1.4 log @Use __RCSID() and __COPYRIGHT(). @ text @d1 1 a1 1 /* $NetBSD: util.c,v 1.3 2001/03/31 11:37:47 aymeric Exp $ */ d19 1 a19 1 __RCSID("$NetBSD$"); @ 1.3 log @merge changes after import of nvi 1.79 @ text @d1 1 a1 1 /* $NetBSD: util.c,v 1.2 1998/01/09 08:07:11 perry Exp $ */ d14 1 d16 1 d18 3 @ 1.2 log @RCS Id Police. @ text @d1 1 a1 1 /* $NetBSD$ */ d15 1 a15 1 static const char sccsid[] = "@@(#)util.c 10.10 (Berkeley) 3/6/96"; d141 1 a141 1 memmove(copy, str, len * sizeof(CHAR_T)); @ 1.1 log @Initial revision @ text @d1 2 d6 2 d9 1 a9 27 * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. d12 2 d15 1 a15 1 static const char sccsid[] = "@@(#)util.c 8.73 (Berkeley) 8/17/94"; a19 1 #include d22 1 a23 1 #include a26 1 #include d29 1 a29 6 #include "compat.h" #include #include #include #include "vi.h" d34 2 d74 2 d78 1 a78 1 nonblank(sp, ep, lno, cnop) a79 1 EXF *ep; d85 1 d91 3 a93 9 /* Get the line. */ if ((p = file_gline(sp, ep, lno, &len)) == NULL) { if (file_lline(sp, ep, &lno)) return (1); if (lno == 0) return (0); GETLINE_ERR(sp, lno); return (1); } d110 2 a124 33 * set_alt_name -- * Set the alternate file name. * * Swap the alternate file name. It's a routine because I wanted some place * to hang this comment. The alternate file name (normally referenced using * the special character '#' during file expansion) is set by many * operations. In the historic vi, the commands "ex", and "edit" obviously * set the alternate file name because they switched the underlying file. * Less obviously, the "read", "file", "write" and "wq" commands set it as * well. In this implementation, some new commands have been added to the * list. Where it gets interesting is that the alternate file name is set * multiple times by some commands. If an edit attempt fails (for whatever * reason, like the current file is modified but as yet unwritten), it is * set to the file name that the user was unable to edit. If the edit * succeeds, it is set to the last file name that was edited. Good fun. * * If the user edits a temporary file, there are time when there isn't an * alternative file name. A name argument of NULL turns it off. */ void set_alt_name(sp, name) SCR *sp; char *name; { if (sp->alt_name != NULL) free(sp->alt_name); if (name == NULL) sp->alt_name = NULL; else if ((sp->alt_name = strdup(name)) == NULL) msgq(sp, M_SYSERR, NULL); } /* d127 2 d133 1 a133 1 CHAR_T *str; d147 59 a205 2 * vi_putchar -- * Functional version of putchar, for tputs. d208 23 a230 4 vi_putchar(ch) int ch; { (void)putchar(ch); d232 1 @ 1.1.1.1 log @new public version of nvi @ text @@ 1.1.1.2 log @new public version of nvi @ text @d35 1 a35 1 static char sccsid[] = "@@(#)util.c 8.74 (Berkeley) 8/17/94"; @ 1.1.1.2.2.1 log @file util.c was added on branch netbsd-1-0 on 1994-08-17 19:26:17 +0000 @ text @d1 213 @ 1.1.1.2.2.2 log @new public version of nvi @ text @a0 213 /*- * Copyright (c) 1991, 1993, 1994 * The Regents of the University of California. 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. */ #ifndef lint static char sccsid[] = "@@(#)util.c 8.74 (Berkeley) 8/17/94"; #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include #include #include "compat.h" #include #include #include #include "vi.h" /* * binc -- * Increase the size of a buffer. */ void * binc(sp, bp, bsizep, min) SCR *sp; /* sp MAY BE NULL!!! */ void *bp; size_t *bsizep, min; { size_t csize; /* If already larger than the minimum, just return. */ if (min && *bsizep >= min) return (bp); csize = *bsizep + MAX(min, 256); REALLOC(sp, bp, void *, csize); if (bp == NULL) { /* * Theoretically, realloc is supposed to leave any already * held memory alone if it can't get more. Don't trust it. */ *bsizep = 0; return (NULL); } /* * Memory is guaranteed to be zero-filled, various parts of * nvi depend on this. */ memset((char *)bp + *bsizep, 0, csize - *bsizep); *bsizep = csize; return (bp); } /* * nonblank -- * Set the column number of the first non-blank character * including or after the starting column. On error, set * the column to 0, it's safest. */ int nonblank(sp, ep, lno, cnop) SCR *sp; EXF *ep; recno_t lno; size_t *cnop; { char *p; size_t cnt, len, off; /* Default. */ off = *cnop; *cnop = 0; /* Get the line. */ if ((p = file_gline(sp, ep, lno, &len)) == NULL) { if (file_lline(sp, ep, &lno)) return (1); if (lno == 0) return (0); GETLINE_ERR(sp, lno); return (1); } /* Set the offset. */ if (len == 0 || off >= len) return (0); for (cnt = off, p = &p[off], len -= off; len && isblank(*p); ++cnt, ++p, --len); /* Set the return. */ *cnop = len ? cnt : cnt - 1; return (0); } /* * tail -- * Return tail of a path. */ char * tail(path) char *path; { char *p; if ((p = strrchr(path, '/')) == NULL) return (path); return (p + 1); } /* * set_alt_name -- * Set the alternate file name. * * Swap the alternate file name. It's a routine because I wanted some place * to hang this comment. The alternate file name (normally referenced using * the special character '#' during file expansion) is set by many * operations. In the historic vi, the commands "ex", and "edit" obviously * set the alternate file name because they switched the underlying file. * Less obviously, the "read", "file", "write" and "wq" commands set it as * well. In this implementation, some new commands have been added to the * list. Where it gets interesting is that the alternate file name is set * multiple times by some commands. If an edit attempt fails (for whatever * reason, like the current file is modified but as yet unwritten), it is * set to the file name that the user was unable to edit. If the edit * succeeds, it is set to the last file name that was edited. Good fun. * * If the user edits a temporary file, there are time when there isn't an * alternative file name. A name argument of NULL turns it off. */ void set_alt_name(sp, name) SCR *sp; char *name; { if (sp->alt_name != NULL) free(sp->alt_name); if (name == NULL) sp->alt_name = NULL; else if ((sp->alt_name = strdup(name)) == NULL) msgq(sp, M_SYSERR, NULL); } /* * v_strdup -- * Strdup for wide character strings with an associated length. */ CHAR_T * v_strdup(sp, str, len) SCR *sp; CHAR_T *str; size_t len; { CHAR_T *copy; MALLOC(sp, copy, CHAR_T *, len + 1); if (copy == NULL) return (NULL); memmove(copy, str, len * sizeof(CHAR_T)); copy[len] = '\0'; return (copy); } /* * vi_putchar -- * Functional version of putchar, for tputs. */ void vi_putchar(ch) int ch; { (void)putchar(ch); } @ 1.1.1.3 log @import of nvi 1.66 @ text @a3 2 * Copyright (c) 1991, 1993, 1994, 1995, 1996 * Keith Bostic. All rights reserved. d5 27 a31 1 * See the LICENSE file for redistribution information. a33 2 #include "config.h" d35 1 a35 1 static const char sccsid[] = "@@(#)util.c 10.10 (Berkeley) 3/6/96"; d40 1 a42 1 #include d44 1 d48 1 d51 6 a56 1 #include "common.h" a60 2 * * PUBLIC: void *binc __P((SCR *, void *, size_t *, size_t)); a98 2 * * PUBLIC: int nonblank __P((SCR *, recno_t, size_t *)); d101 1 a101 1 nonblank(sp, lno, cnop) d103 1 a108 1 int isempty; d114 9 a122 3 /* Get the line, succeeding in an empty file. */ if (db_eget(sp, lno, &p, &len, &isempty)) return (!isempty); a138 2 * * PUBLIC: char *tail __P((char *)); d152 33 a186 2 * * PUBLIC: CHAR_T *v_strdup __P((SCR *, const CHAR_T *, size_t)); d191 1 a191 1 const CHAR_T *str; d205 2 a206 59 * nget_uslong -- * Get an unsigned long, checking for overflow. * * PUBLIC: enum nresult nget_uslong __P((u_long *, const char *, char **, int)); */ enum nresult nget_uslong(valp, p, endp, base) u_long *valp; const char *p; char **endp; int base; { errno = 0; *valp = strtoul(p, endp, base); if (errno == 0) return (NUM_OK); if (errno == ERANGE && *valp == ULONG_MAX) return (NUM_OVER); return (NUM_ERR); } /* * nget_slong -- * Convert a signed long, checking for overflow and underflow. * * PUBLIC: enum nresult nget_slong __P((long *, const char *, char **, int)); */ enum nresult nget_slong(valp, p, endp, base) long *valp; const char *p; char **endp; int base; { errno = 0; *valp = strtol(p, endp, base); if (errno == 0) return (NUM_OK); if (errno == ERANGE) { if (*valp == LONG_MAX) return (NUM_OVER); if (*valp == LONG_MIN) return (NUM_UNDER); } return (NUM_ERR); } #ifdef DEBUG #ifdef __STDC__ #include #else #include #endif /* * TRACE -- * debugging trace routine. * * PUBLIC: void TRACE __P((SCR *, const char *, ...)); d209 4 a212 23 #ifdef __STDC__ TRACE(SCR *sp, const char *fmt, ...) #else TRACE(sp, fmt, va_alist) SCR *sp; char *fmt; va_dcl #endif { FILE *tfp; va_list ap; if ((tfp = sp->gp->tracefp) == NULL) return; #ifdef __STDC__ va_start(ap, fmt); #else va_start(ap); #endif (void)vfprintf(tfp, fmt, ap); va_end(ap); (void)fflush(tfp); a213 1 #endif @ 1.1.1.4 log @import of nvi 1.79 @ text @d13 1 a13 1 static const char sccsid[] = "@@(#)util.c 10.11 (Berkeley) 9/15/96"; d139 1 a139 1 memcpy(copy, str, len * sizeof(CHAR_T)); @