/* * v_searchN -- N * Reverse last search. * * PUBLIC: int v_searchN __P((SCR *, VICMD *)); */ int v_searchN(SCR *sp, VICMD *vp) { dir_t dir; switch (sp->searchdir) { case BACKWARD: dir = FORWARD; break; case FORWARD: dir = BACKWARD; break; default: dir = sp->searchdir; break; } return (v_search(sp, vp, NULL, 0, SEARCH_PARSE, dir)); }
/* * v_searchw -- [count]^A * Search for the word under the cursor. * * PUBLIC: int v_searchw __P((SCR *, VICMD *)); */ int v_searchw(SCR *sp, VICMD *vp) { size_t blen, len; int rval; CHAR_T *bp, *p; /* An upper bound for the SIZE of the RE under construction. */ len = VIP(sp)->klen + MAX(RE_WSTART_LEN, 1) + MAX(RE_WSTOP_LEN, RE_NWSTOP_LEN); GET_SPACE_RETW(sp, bp, blen, len); p = bp; /* Only the first character can be non-word, see v_curword. */ if (inword(VIP(sp)->keyw[0])) { MEMCPY(p, RE_WSTART, RE_WSTART_LEN); p += RE_WSTART_LEN; } else if (is_special(VIP(sp)->keyw[0])) { MEMCPY(p, L("\\"), 1); p += 1; } MEMCPY(p, VIP(sp)->keyw, VIP(sp)->klen); p += VIP(sp)->klen; if (inword(p[-1])) { MEMCPY(p, RE_WSTOP, RE_WSTOP_LEN); p += RE_WSTOP_LEN; } else { /* * The keyword is a single non-word character. * We want it to stay the same when typing ^A several times * in a row, just the way the other cases behave. */ MEMCPY(p, RE_NWSTOP, RE_NWSTOP_LEN); p += RE_NWSTOP_LEN; } len = p - bp; rval = v_search(sp, vp, bp, len, SEARCH_SET, FORWARD); FREE_SPACEW(sp, bp, blen); return (rval); }
/* * v_esearch -- <dialog box> * Search command from the screen. * * PUBLIC: int v_esearch __P((SCR *, VICMD *)); */ int v_esearch(SCR *sp, VICMD *vp) { int flags; LF_INIT(SEARCH_NOOPT); if (FL_ISSET(vp->ev.e_flags, VI_SEARCH_EXT)) LF_SET(SEARCH_EXTEND); if (FL_ISSET(vp->ev.e_flags, VI_SEARCH_IC)) LF_SET(SEARCH_IC); if (FL_ISSET(vp->ev.e_flags, VI_SEARCH_ICL)) LF_SET(SEARCH_ICL); if (FL_ISSET(vp->ev.e_flags, VI_SEARCH_INCR)) LF_SET(SEARCH_INCR); if (FL_ISSET(vp->ev.e_flags, VI_SEARCH_LIT)) LF_SET(SEARCH_LITERAL); if (FL_ISSET(vp->ev.e_flags, VI_SEARCH_WR)) LF_SET(SEARCH_WRAP); return (v_search(sp, vp, vp->ev.e_csp, vp->ev.e_len, flags, FL_ISSET(vp->ev.e_flags, VI_SEARCH_REV) ? BACKWARD : FORWARD)); }
/* * v_searchw -- [count]^A * Search for the word under the cursor. * * PUBLIC: int v_searchw __P((SCR *, VICMD *)); */ int v_searchw(SCR *sp, VICMD *vp) { size_t blen, len; int rval; CHAR_T *bp, *p; len = VIP(sp)->klen + MAX(RE_WSTART_LEN, 1) + MAX(RE_WSTOP_LEN, RE_NWSTOP_LEN); GET_SPACE_RETW(sp, bp, blen, len); p = bp; /* Only the first character can be non-word, see v_curword. */ if (inword(VIP(sp)->keyw[0])) p = MEMPCPY(p, RE_WSTART, RE_WSTART_LEN); else if (is_especial(VIP(sp)->keyw[0])) p = MEMPCPY(p, L("\\"), 1); p = MEMPCPY(p, VIP(sp)->keyw, VIP(sp)->klen); if (inword(p[-1])) p = MEMPCPY(p, RE_WSTOP, RE_WSTOP_LEN); else /* * The keyword is a single non-word character. * We want it to stay the same when typing ^A several times * in a row, just the way the other cases behave. */ p = MEMPCPY(p, RE_NWSTOP, RE_NWSTOP_LEN); len = p - bp; rval = v_search(sp, vp, bp, len, SEARCH_SET | SEARCH_EXTEND, FORWARD); FREE_SPACEW(sp, bp, blen); return (rval); }
/* * v_exaddr -- * Do a vi search (which is really an ex address). */ static int v_exaddr(SCR *sp, VICMD *vp, dir_t dir) { static EXCMDLIST fake = { L("search") }; EXCMD *cmdp; GS *gp; TEXT *tp; recno_t s_lno; size_t len, s_cno, tlen; int err, nb, type; char buf[20]; CHAR_T *cmd, *t; CHAR_T *w; size_t wlen; /* * !!! * If using the search command as a motion, any addressing components * are lost, i.e. y/ptrn/+2, when repeated, is the same as y/ptrn/. */ if (F_ISSET(vp, VC_ISDOT)) return (v_search(sp, vp, NULL, 0, SEARCH_PARSE | SEARCH_MSG | SEARCH_SET, dir)); /* Get the search pattern. */ if (v_tcmd(sp, vp, dir == BACKWARD ? CH_BSEARCH : CH_FSEARCH, TXT_BS | TXT_CR | TXT_ESCAPE | TXT_PROMPT | (O_ISSET(sp, O_SEARCHINCR) ? TXT_SEARCHINCR : 0))) return (1); tp = TAILQ_FIRST(sp->tiq); /* If the user backspaced over the prompt, do nothing. */ if (tp->term == TERM_BS) return (1); /* * If the user was doing an incremental search, then we've already * updated the cursor and moved to the right location. Return the * correct values, we're done. */ if (tp->term == TERM_SEARCH) { vp->m_stop.lno = sp->lno; vp->m_stop.cno = sp->cno; if (ISMOTION(vp)) return (v_correct(sp, vp, 0)); vp->m_final = vp->m_stop; return (0); } /* * If the user entered <escape> or <carriage-return>, the length is * 1 and the right thing will happen, i.e. the prompt will be used * as a command character. * * Build a fake ex command structure. */ gp = sp->gp; gp->excmd.cp = tp->lb; gp->excmd.clen = tp->len; F_INIT(&gp->excmd, E_VISEARCH); /* * XXX * Warn if the search wraps. This is a pretty special case, but it's * nice feature that wasn't in the original implementations of ex/vi. * (It was added at some point to System V's version.) This message * is only displayed if there are no keys in the queue. The problem is * the command is going to succeed, and the message is informational, * not an error. If a macro displays it repeatedly, e.g., the pattern * only occurs once in the file and wrapscan is set, you lose big. For * example, if the macro does something like: * * :map K /pattern/^MjK * * Each search will display the message, but the following "/pattern/" * will immediately overwrite it, with strange results. The System V * vi displays the "wrapped" message multiple times, but because it's * overwritten each time, it's not as noticeable. As we don't discard * messages, it's a real problem for us. */ if (!KEYS_WAITING(sp)) F_SET(&gp->excmd, E_SEARCH_WMSG); /* Save the current line/column. */ s_lno = sp->lno; s_cno = sp->cno; /* * !!! * Historically, vi / and ? commands were full-blown ex addresses, * including ';' delimiters, trailing <blank>'s, multiple search * strings (separated by semi-colons) and, finally, full-blown z * commands after the / and ? search strings. (If the search was * being used as a motion, the trailing z command was ignored. * Also, we do some argument checking on the z command, to be sure * that it's not some other random command.) For multiple search * strings, leading <blank>'s at the second and subsequent strings * were eaten as well. This has some (unintended?) side-effects: * the command /ptrn/;3 is legal and results in moving to line 3. * I suppose you could use it to optionally move to line 3... * * !!! * Historically, if any part of the search command failed, the cursor * remained unmodified (even if ; was used). We have to play games * because the underlying ex parser thinks we're modifying the cursor * as we go, but I think we're compatible with historic practice. * * !!! * Historically, the command "/STRING/; " failed, apparently it * confused the parser. We're not that compatible. */ cmdp = &gp->excmd; if (ex_range(sp, cmdp, &err)) return (1); /* * Remember where any remaining command information is, and clean * up the fake ex command. */ cmd = cmdp->cp; len = cmdp->clen; gp->excmd.clen = 0; if (err) goto err2; /* Copy out the new cursor position and make sure it's okay. */ switch (cmdp->addrcnt) { case 1: vp->m_stop = cmdp->addr1; break; case 2: vp->m_stop = cmdp->addr2; break; } if (!db_exist(sp, vp->m_stop.lno)) { ex_badaddr(sp, &fake, vp->m_stop.lno == 0 ? A_ZERO : A_EOF, NUM_OK); goto err2; } /* * !!! * Historic practice is that a trailing 'z' was ignored if it was a * motion command. Should probably be an error, but not worth the * effort. */ if (ISMOTION(vp)) return (v_correct(sp, vp, F_ISSET(cmdp, E_DELTA))); /* * !!! * Historically, if it wasn't a motion command, a delta in the search * pattern turns it into a first nonblank movement. */ nb = F_ISSET(cmdp, E_DELTA); /* Check for the 'z' command. */ if (len != 0) { if (*cmd != 'z') goto err1; /* No blanks, just like the z command. */ for (t = cmd + 1, tlen = len - 1; tlen > 0; ++t, --tlen) if (!isdigit(*t)) break; if (tlen && (*t == '-' || *t == '.' || *t == '+' || *t == '^')) { ++t; --tlen; type = 1; } else type = 0; if (tlen) goto err1; /* The z command will do the nonblank for us. */ nb = 0; /* Default to z+. */ if (!type && v_event_push(sp, NULL, L("+"), 1, CH_NOMAP | CH_QUOTED)) return (1); /* Push the user's command. */ if (v_event_push(sp, NULL, cmd, len, CH_NOMAP | CH_QUOTED)) return (1); /* Push line number so get correct z display. */ tlen = snprintf(buf, sizeof(buf), "%lu", (u_long)vp->m_stop.lno); CHAR2INT(sp, buf, tlen, w, wlen); if (v_event_push(sp, NULL, w, wlen, CH_NOMAP | CH_QUOTED)) return (1); /* Don't refresh until after 'z' happens. */ F_SET(VIP(sp), VIP_S_REFRESH); } /* Non-motion commands move to the end of the range. */ vp->m_final = vp->m_stop; if (nb) { F_CLR(vp, VM_RCM_MASK); F_SET(vp, VM_RCM_SETFNB); } return (0); err1: msgq(sp, M_ERR, "188|Characters after search string, line offset and/or z command"); err2: vp->m_final.lno = s_lno; vp->m_final.cno = s_cno; return (1); }
/* * v_searchn -- n * Repeat last search. * * PUBLIC: int v_searchn __P((SCR *, VICMD *)); */ int v_searchn(SCR *sp, VICMD *vp) { return (v_search(sp, vp, NULL, 0, SEARCH_PARSE, sp->searchdir)); }