diff options
Diffstat (limited to 'cmd-line-utils/libedit/read.c')
| -rw-r--r-- | cmd-line-utils/libedit/read.c | 147 |
1 files changed, 86 insertions, 61 deletions
diff --git a/cmd-line-utils/libedit/read.c b/cmd-line-utils/libedit/read.c index 5eaa83bf482..40093d6647f 100644 --- a/cmd-line-utils/libedit/read.c +++ b/cmd-line-utils/libedit/read.c @@ -1,4 +1,4 @@ -/* $NetBSD: read.c,v 1.24 2002/11/20 16:50:08 christos Exp $ */ +/* $NetBSD: read.c,v 1.35 2005/03/09 23:55:02 christos Exp $ */ /*- * Copyright (c) 1992, 1993 @@ -15,11 +15,7 @@ * 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 + * 3. 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. * @@ -36,20 +32,14 @@ * SUCH DAMAGE. */ -#include "config.h" -#if !defined(lint) && !defined(SCCSID) -#if 0 -static char sccsid[] = "@(#)read.c 8.1 (Berkeley) 6/4/93"; -#else -__RCSID("$NetBSD: read.c,v 1.24 2002/11/20 16:50:08 christos Exp $"); -#endif -#endif /* not lint && not SCCSID */ +#include <config.h> /* * read.c: Clean this junk up! This is horrible code. * Terminal read functions */ #include <errno.h> +#include <fcntl.h> #include <unistd.h> #include <stdlib.h> #include "el.h" @@ -97,6 +87,10 @@ el_read_getfn(EditLine *el) } +#ifndef MIN +#define MIN(A,B) ((A) < (B) ? (A) : (B)) +#endif + #ifdef DEBUG_EDIT private void read_debug(EditLine *el) @@ -121,11 +115,7 @@ read_debug(EditLine *el) */ /* ARGSUSED */ private int -read__fixio(int fd -#if !(defined(TRY_AGAIN) && (defined(FIONBIO) || (defined(F_SETFL) && defined(O_NDELAY)))) - __attribute__((unused)) -#endif /* !(defined(TRY_AGAIN) && (defined(FIONBIO) || (defined(F_SETFL) && defined(O_NDELAY)))) */ -, int e) +read__fixio(int fd __attribute__((__unused__)), int e) { switch (e) { @@ -190,18 +180,10 @@ read_preread(EditLine *el) { int chrs = 0; - if (el->el_chared.c_macro.nline) { - el_free((ptr_t) el->el_chared.c_macro.nline); - el->el_chared.c_macro.nline = NULL; - } if (el->el_tty.t_mode == ED_IO) return (0); #ifdef FIONREAD - -#ifndef MIN // definition of MIN is lacking on hpux.. -#define MIN(x,y) (((x)<(y))?(x):(y)) -#endif (void) ioctl(el->el_infd, FIONREAD, (ioctl_t) & chrs); if (chrs > 0) { char buf[EL_BUFSIZ]; @@ -210,8 +192,7 @@ read_preread(EditLine *el) (size_t) MIN(chrs, EL_BUFSIZ - 1)); if (chrs > 0) { buf[chrs] = '\0'; - el->el_chared.c_macro.nline = strdup(buf); - el_push(el, el->el_chared.c_macro.nline); + el_push(el, buf); } } #endif /* FIONREAD */ @@ -230,11 +211,12 @@ el_push(EditLine *el, char *str) if (str != NULL && ma->level + 1 < EL_MAXMACRO) { ma->level++; - ma->macro[ma->level] = str; - } else { - term_beep(el); - term__flush(); + if ((ma->macro[ma->level] = el_strdup(str)) != NULL) + return; + ma->level--; } + term_beep(el); + term__flush(); } @@ -266,7 +248,7 @@ read_getcmd(EditLine *el, el_action_t *cmdnum, char *ch) cmd = el->el_map.current[(unsigned char) *ch]; if (cmd == ED_SEQUENCE_LEAD_IN) { key_value_t val; - switch (el_key_get(el, ch, &val)) { + switch (key_get(el, ch, &val)) { case XK_CMD: cmd = val.cmd; break; @@ -331,14 +313,16 @@ el_getc(EditLine *el, char *cp) if (ma->level < 0) break; - if (*ma->macro[ma->level] == 0) { - ma->level--; + if (ma->macro[ma->level][ma->offset] == '\0') { + el_free(ma->macro[ma->level--]); + ma->offset = 0; continue; } - *cp = *ma->macro[ma->level]++ & 0377; - if (*ma->macro[ma->level] == 0) { /* Needed for QuoteMode - * On */ - ma->level--; + *cp = ma->macro[ma->level][ma->offset++] & 0377; + if (ma->macro[ma->level][ma->offset] == '\0') { + /* Needed for QuoteMode On */ + el_free(ma->macro[ma->level--]); + ma->offset = 0; } return (1); } @@ -359,6 +343,35 @@ el_getc(EditLine *el, char *cp) return (num_read); } +protected void +read_prepare(EditLine *el) +{ + if (el->el_flags & HANDLE_SIGNALS) + sig_set(el); + if (el->el_flags & NO_TTY) + return; + if ((el->el_flags & (UNBUFFERED|EDIT_DISABLED)) == UNBUFFERED) + tty_rawmode(el); + + /* This is relatively cheap, and things go terribly wrong if + we have the wrong size. */ + el_resize(el); + re_clear_display(el); /* reset the display stuff */ + ch_reset(el); + re_refresh(el); /* print the prompt */ + + if (el->el_flags & UNBUFFERED) + term__flush(); +} + +protected void +read_finish(EditLine *el) +{ + if ((el->el_flags & UNBUFFERED) == 0) + (void) tty_cookedmode(el); + if (el->el_flags & HANDLE_SIGNALS) + sig_clr(el); +} public const char * el_gets(EditLine *el, int *nread) @@ -367,13 +380,11 @@ el_gets(EditLine *el, int *nread) el_action_t cmdnum = 0; int num; /* how many chars we have read at NL */ char ch; + int crlf = 0; #ifdef FIONREAD c_macro_t *ma = &el->el_chared.c_macro; #endif /* FIONREAD */ - if (el->el_flags & HANDLE_SIGNALS) - sig_set(el); - if (el->el_flags & NO_TTY) { char *cp = el->el_line.buffer; size_t idx; @@ -387,6 +398,8 @@ el_gets(EditLine *el, int *nread) cp = &el->el_line.buffer[idx]; } cp++; + if (el->el_flags & UNBUFFERED) + break; if (cp[-1] == '\r' || cp[-1] == '\n') break; } @@ -398,12 +411,6 @@ el_gets(EditLine *el, int *nread) return (el->el_line.buffer); } - /* This is relatively cheap, and things go terribly wrong if - we have the wrong size. */ - el_resize(el); - - re_clear_display(el); /* reset the display stuff */ - ch_reset(el); #ifdef FIONREAD if (el->el_tty.t_mode == EX_IO && ma->level < 0) { @@ -420,11 +427,16 @@ el_gets(EditLine *el, int *nread) } #endif /* FIONREAD */ - re_refresh(el); /* print the prompt */ + if ((el->el_flags & UNBUFFERED) == 0) + read_prepare(el); if (el->el_flags & EDIT_DISABLED) { - char *cp = el->el_line.buffer; + char *cp; size_t idx; + if ((el->el_flags & UNBUFFERED) == 0) + cp = el->el_line.buffer; + else + cp = el->el_line.lastchar; term__flush(); @@ -439,7 +451,10 @@ el_gets(EditLine *el, int *nread) if (*cp == 4) /* ought to be stty eof */ break; cp++; - if (cp[-1] == '\r' || cp[-1] == '\n') + crlf = cp[-1] == '\r' || cp[-1] == '\n'; + if (el->el_flags & UNBUFFERED) + break; + if (crlf) break; } @@ -463,8 +478,7 @@ el_gets(EditLine *el, int *nread) #endif /* DEBUG_READ */ break; } - if ((unsigned int)cmdnum >= (unsigned int)(el->el_map.nfunc)) - { /* BUG CHECK command */ + if ((uint)cmdnum >= el->el_map.nfunc) { /* BUG CHECK command */ #ifdef DEBUG_EDIT (void) fprintf(el->el_errfile, "ERROR: illegal command from key 0%o\r\n", ch); @@ -494,7 +508,7 @@ el_gets(EditLine *el, int *nread) el->el_chared.c_redo.pos < el->el_chared.c_redo.lim) { if (cmdnum == VI_DELETE_PREV_CHAR && el->el_chared.c_redo.pos != el->el_chared.c_redo.buf - && isprint(el->el_chared.c_redo.pos[-1])) + && isprint((unsigned char)el->el_chared.c_redo.pos[-1])) el->el_chared.c_redo.pos--; else *el->el_chared.c_redo.pos++ = ch; @@ -536,7 +550,13 @@ el_gets(EditLine *el, int *nread) continue; /* keep going... */ case CC_EOF: /* end of file typed */ - num = 0; + if ((el->el_flags & UNBUFFERED) == 0) + num = 0; + else if (num == -1) { + *el->el_line.lastchar++ = CONTROL('d'); + el->el_line.cursor = el->el_line.lastchar; + num = 1; + } break; case CC_NEWLINE: /* normal end of line */ @@ -567,14 +587,19 @@ el_gets(EditLine *el, int *nread) el->el_state.argument = 1; el->el_state.doingarg = 0; el->el_chared.c_vcmd.action = NOP; + if (el->el_flags & UNBUFFERED) + break; } term__flush(); /* flush any buffered output */ /* make sure the tty is set up correctly */ - (void) tty_cookedmode(el); - if (el->el_flags & HANDLE_SIGNALS) - sig_clr(el); - if (nread) - *nread = num; + if ((el->el_flags & UNBUFFERED) == 0) { + read_finish(el); + if (nread) + *nread = num; + } else { + if (nread) + *nread = el->el_line.lastchar - el->el_line.buffer; + } return (num ? el->el_line.buffer : NULL); } |