/*- * Copyright (c) 1992, 1993 * 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[] = "@(#)v_section.c 8.1 (Berkeley) 6/9/93"; #endif /* not lint */ #include <sys/types.h> #include <string.h> #include "vi.h" #include "vcmd.h" /* * In historic vi, the section commands ignored empty lines, unlike the * paragraph commands, which was probably okay, but also moved to the * start of the last line when there where no more sections instead of * the end of the last line. This has been changed to be more like the * paragraphs command. * * In historic vi, a "function" was defined as the first character on * the line being an open brace. */ /* * v_sectionf -- [count]]] * Move forward count sections/functions. */ int v_sectionf(sp, ep, vp, fm, tm, rp) SCR *sp; EXF *ep; VICMDARG *vp; MARK *fm, *tm, *rp; { size_t len; recno_t cnt, lno; char *p, *list, *lp; /* Get macro list. */ if ((list = O_STR(sp, O_SECTIONS)) == NULL) return (1); if (strlen(list) & 1) { msgq(sp, M_ERR, "Section options must be in groups of two characters."); return (1); } rp->cno = 0; cnt = F_ISSET(vp, VC_C1SET) ? vp->count : 1; for (lno = fm->lno; p = file_gline(sp, ep, ++lno, &len);) switch(len) { case 0: break;; case 1: if (p[0] == '{' && !--cnt) { rp->lno = lno; return (0); } break; default: if (p[0] != '.') break; /* Check for macro. */ for (lp = list; *lp; lp += 2) if (lp[0] == p[1] && (lp[1] == ' ' || lp[1] == p[2]) && !--cnt) { rp->lno = lno; return (0); } break; } /* EOF is a movement sink. */ if (fm->lno != lno - 1) { rp->lno = lno - 1; rp->cno = len ? len - 1 : 0; return (0); } v_eof(sp, ep, NULL); return (1); } /* * v_sectionb -- [count][[ * Move backward count sections/functions. */ int v_sectionb(sp, ep, vp, fm, tm, rp) SCR *sp; EXF *ep; VICMDARG *vp; MARK *fm, *tm, *rp; { size_t len; recno_t cnt, lno; char *p, *list, *lp; /* Check for SOF. */ if (fm->lno <= 1) { v_sof(sp, NULL); return (1); } if ((list = O_STR(sp, O_SECTIONS)) == NULL) return (1); if (strlen(list) & 1) { msgq(sp, M_ERR, "Section options must be in groups of two characters."); return (1); } rp->cno = 0; cnt = F_ISSET(vp, VC_C1SET) ? vp->count : 1; for (lno = fm->lno; p = file_gline(sp, ep, --lno, &len);) switch(len) { case 0: break; case 1: if (p[0] == '{' && !--cnt) { rp->lno = lno; return (0); } break; default: if (p[0] != '.') break; /* Check for macro. */ for (lp = list; *lp; lp += 2) if (lp[0] == p[1] && (lp[1] == ' ' || lp[1] == p[2]) && !--cnt) { rp->lno = lno; return (0); } break; } /* SOF is a movement sink. */ rp->lno = 1; return (0); }