cmdedit: reformat code a bit, no algorithm changes
This commit is contained in:
Denis Vlasenko
parent
d56b47f9a6
commit
0a8a774179
153
shell/cmdedit.c
153
shell/cmdedit.c
@ -155,12 +155,12 @@ static void win_changed(int nsig)
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static void cmdedit_reset_term(void)
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{
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if ((handlers_sets & SET_RESET_TERM) != 0) {
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if (handlers_sets & SET_RESET_TERM) {
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/* sparc and other have broken termios support: use old termio handling. */
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setTermSettings(STDIN_FILENO, (void *) &initial_settings);
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handlers_sets &= ~SET_RESET_TERM;
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}
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if ((handlers_sets & SET_WCHG_HANDLERS) != 0) {
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if (handlers_sets & SET_WCHG_HANDLERS) {
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/* reset SIGWINCH handler to previous (default) */
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win_changed(0);
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handlers_sets &= ~SET_WCHG_HANDLERS;
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@ -172,8 +172,7 @@ static void cmdedit_reset_term(void)
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/* special for recount position for scroll and remove terminal margin effect */
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static void cmdedit_set_out_char(int next_char)
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{
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int c = (int)((unsigned char) command_ps[cursor]);
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int c = (unsigned char)command_ps[cursor];
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if (c == 0)
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c = ' '; /* destroy end char? */
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@ -188,7 +187,10 @@ static void cmdedit_set_out_char(int next_char)
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printf("\033[7m%c\033[0m", c);
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} else
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#endif
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if (initial_settings.c_lflag & ECHO) putchar(c);
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{
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if (initial_settings.c_lflag & ECHO)
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putchar(c);
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}
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if (++cmdedit_x >= cmdedit_termw) {
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/* terminal is scrolled down */
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cmdedit_y++;
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@ -320,7 +322,6 @@ static void parse_prompt(const char *prmt_ptr)
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strcpy(pbuf, "?");
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} else {
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char *s = strchr(pbuf, '.');
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if (s)
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*s = 0;
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}
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@ -328,16 +329,17 @@ static void parse_prompt(const char *prmt_ptr)
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}
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break;
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case '$':
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c = my_euid == 0 ? '#' : '$';
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c = (my_euid == 0 ? '#' : '$');
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break;
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#if ENABLE_FEATURE_GETUSERNAME_AND_HOMEDIR
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case 'w':
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pbuf = pwd_buf;
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l = strlen(home_pwd_buf);
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if (home_pwd_buf[0] != 0 &&
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strncmp(home_pwd_buf, pbuf, l) == 0 &&
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(pbuf[l]=='/' || pbuf[l]=='\0') &&
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strlen(pwd_buf+l)<PATH_MAX) {
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if (home_pwd_buf[0] != 0
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&& strncmp(home_pwd_buf, pbuf, l) == 0
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&& (pbuf[l]=='/' || pbuf[l]=='\0')
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&& strlen(pwd_buf+l)<PATH_MAX
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) {
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pbuf = buf2;
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*pbuf = '~';
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strcpy(pbuf+1, pwd_buf+l);
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@ -347,7 +349,7 @@ static void parse_prompt(const char *prmt_ptr)
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case 'W':
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pbuf = pwd_buf;
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cp = strrchr(pbuf,'/');
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if ( (cp != NULL) && (cp != pbuf) )
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if (cp != NULL && cp != pbuf)
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pbuf += (cp-pbuf) + 1;
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break;
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case '!':
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@ -504,13 +506,13 @@ static void cmdedit_setwidth(int w, int redraw_flg)
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static void cmdedit_init(void)
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{
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cmdedit_prmt_len = 0;
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if ((handlers_sets & SET_WCHG_HANDLERS) == 0) {
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if (!(handlers_sets & SET_WCHG_HANDLERS)) {
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/* emulate usage handler to set handler and call yours work */
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win_changed(-SIGWINCH);
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handlers_sets |= SET_WCHG_HANDLERS;
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}
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if ((handlers_sets & SET_ATEXIT) == 0) {
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if (!(handlers_sets & SET_ATEXIT)) {
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#if ENABLE_FEATURE_GETUSERNAME_AND_HOMEDIR
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struct passwd *entry;
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@ -553,10 +555,13 @@ static void add_match(char *matched)
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/*
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static int is_execute(const struct stat *st)
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{
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if ((!my_euid && (st->st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))) ||
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(my_uid == st->st_uid && (st->st_mode & S_IXUSR)) ||
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(my_gid == st->st_gid && (st->st_mode & S_IXGRP)) ||
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(st->st_mode & S_IXOTH)) return TRUE;
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if ((!my_euid && (st->st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
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|| (my_uid == st->st_uid && (st->st_mode & S_IXUSR))
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|| (my_gid == st->st_gid && (st->st_mode & S_IXGRP))
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|| (st->st_mode & S_IXOTH)
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) {
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return TRUE;
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}
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return FALSE;
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}
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*/
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@ -629,26 +634,25 @@ static int path_parse(char ***p, int flags)
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{
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int npth;
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const char *tmp;
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const char *pth;
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const char *pth = cmdedit_path_lookup;
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/* if not setenv PATH variable, to search cur dir "." */
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if (flags != FIND_EXE_ONLY || (pth = cmdedit_path_lookup) == 0 ||
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/* PATH=<empty> or PATH=:<empty> */
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*pth == 0 || (*pth == ':' && *(pth + 1) == 0)) {
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if (flags != FIND_EXE_ONLY)
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return 1;
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/* PATH=<empty> or PATH=:<empty> */
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if (!pth || !pth[0] || LONE_CHAR(pth, ':'))
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return 1;
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}
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tmp = pth;
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npth = 0;
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for (;;) {
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while (1) {
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npth++; /* count words is + 1 count ':' */
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tmp = strchr(tmp, ':');
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if (tmp) {
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if (!tmp)
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break;
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if (*++tmp == 0)
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break; /* :<empty> */
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} else
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break;
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}
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*p = xmalloc(npth * sizeof(char *));
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@ -657,14 +661,13 @@ static int path_parse(char ***p, int flags)
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(*p)[0] = xstrdup(tmp);
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npth = 1; /* count words is + 1 count ':' */
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for (;;) {
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while (1) {
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tmp = strchr(tmp, ':');
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if (tmp) {
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if (!tmp)
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break;
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(*p)[0][(tmp - pth)] = 0; /* ':' -> '\0' */
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if (*++tmp == 0)
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break; /* :<empty> */
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} else
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break;
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(*p)[npth++] = &(*p)[0][(tmp - pth)]; /* p[next]=p[0][&'\0'+1] */
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}
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@ -728,6 +731,7 @@ static void exe_n_cwd_tab_completion(char *command, int type)
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continue;
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while ((next = readdir(dir)) != NULL) {
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int len1;
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char *str_found = next->d_name;
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/* matched? */
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@ -735,10 +739,9 @@ static void exe_n_cwd_tab_completion(char *command, int type)
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continue;
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/* not see .name without .match */
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if (*str_found == '.' && *pfind == 0) {
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if (*paths[i] == '/' && paths[i][1] == 0
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&& str_found[1] == 0) str_found = ""; /* only "/" */
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else
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if (NOT_LONE_CHAR(paths[i], '/') || str_found[1])
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continue;
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str_found = ""; /* only "/" */
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}
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found = concat_path_file(paths[i], str_found);
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/* hmm, remover in progress? */
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@ -748,7 +751,7 @@ static void exe_n_cwd_tab_completion(char *command, int type)
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if (paths[i] != dirbuf)
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strcpy(found, next->d_name); /* only name */
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int len1 = strlen(found);
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len1 = strlen(found);
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found = xrealloc(found, len1 + 2);
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found[len1] = '\0';
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found[len1+1] = '\0';
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@ -794,7 +797,7 @@ static int find_match(char *matchBuf, int *len_with_quotes)
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/* set to integer dimension characters and own positions */
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for (i = 0;; i++) {
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int_buf[i] = (int) ((unsigned char) matchBuf[i]);
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int_buf[i] = (unsigned char)matchBuf[i];
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if (int_buf[i] == 0) {
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pos_buf[i] = -1; /* indicator end line */
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break;
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@ -835,7 +838,7 @@ static int find_match(char *matchBuf, int *len_with_quotes)
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int_buf[i] |= QUOT;
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}
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/* skip commands with arguments if line have commands delimiters */
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/* skip commands with arguments if line has commands delimiters */
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/* ';' ';;' '&' '|' '&&' '||' but `>&' `<&' `>|' */
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for (i = 0; int_buf[i]; i++) {
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c = int_buf[i];
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@ -907,15 +910,16 @@ static int find_match(char *matchBuf, int *len_with_quotes)
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if (int_buf[i] == ' ' || int_buf[i] == '<' || int_buf[i] == '>') {
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if (int_buf[i] == ' ' && command_mode == FIND_EXE_ONLY
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&& matchBuf[pos_buf[0]]=='c'
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&& matchBuf[pos_buf[1]]=='d' )
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&& matchBuf[pos_buf[1]]=='d'
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) {
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command_mode = FIND_DIR_ONLY;
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else {
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} else {
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command_mode = FIND_FILE_ONLY;
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break;
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}
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}
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/* "strlen" */
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for (i = 0; int_buf[i]; i++);
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for (i = 0; int_buf[i]; i++)
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/* "strlen" */;
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/* find last word */
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for (--i; i >= 0; i--) {
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c = int_buf[i];
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@ -925,11 +929,12 @@ static int find_match(char *matchBuf, int *len_with_quotes)
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}
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}
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/* skip first not quoted '\'' or '"' */
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for (i = 0; int_buf[i] == '\'' || int_buf[i] == '"'; i++);
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for (i = 0; int_buf[i] == '\'' || int_buf[i] == '"'; i++)
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/*skip*/;
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/* collapse quote or unquote // or /~ */
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while ((int_buf[i] & ~QUOT) == '/' &&
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((int_buf[i + 1] & ~QUOT) == '/'
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|| (int_buf[i + 1] & ~QUOT) == '~')) {
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while ((int_buf[i] & ~QUOT) == '/'
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&& ((int_buf[i+1] & ~QUOT) == '/' || (int_buf[i+1] & ~QUOT) == '~')
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) {
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i++;
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}
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@ -1155,8 +1160,8 @@ void load_history ( const char *fromfile )
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free(history[hi]);
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}
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if (( fp = fopen ( fromfile, "r" ))) {
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fp = fopen(fromfile, "r");
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if (fp) {
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for (hi = 0; hi < MAX_HISTORY;) {
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char * hl = xmalloc_getline(fp);
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int l;
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@ -1239,13 +1244,11 @@ static void
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vi_word_motion(char *command, int eat)
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{
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if (isalnum(command[cursor]) || command[cursor] == '_') {
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while (cursor < len &&
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(isalnum(command[cursor+1]) ||
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command[cursor+1] == '_'))
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while (cursor < len
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&& (isalnum(command[cursor+1]) || command[cursor+1] == '_'))
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input_forward();
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} else if (ispunct(command[cursor])) {
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while (cursor < len &&
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(ispunct(command[cursor+1])))
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while (cursor < len && ispunct(command[cursor+1]))
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input_forward();
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}
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@ -1278,13 +1281,13 @@ vi_end_motion(char *command)
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if (cursor >= len-1)
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return;
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if (isalnum(command[cursor]) || command[cursor] == '_') {
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while (cursor < len-1 &&
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(isalnum(command[cursor+1]) ||
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command[cursor+1] == '_'))
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while (cursor < len-1
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&& (isalnum(command[cursor+1]) || command[cursor+1] == '_')
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) {
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input_forward();
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}
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} else if (ispunct(command[cursor])) {
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while (cursor < len-1 &&
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(ispunct(command[cursor+1])))
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while (cursor < len-1 && ispunct(command[cursor+1]))
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input_forward();
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}
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}
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@ -1309,13 +1312,13 @@ vi_back_motion(char *command)
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if (cursor <= 0)
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return;
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if (isalnum(command[cursor]) || command[cursor] == '_') {
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while (cursor > 0 &&
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(isalnum(command[cursor-1]) ||
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command[cursor-1] == '_'))
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while (cursor > 0
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&& (isalnum(command[cursor-1]) || command[cursor-1] == '_')
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) {
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input_backward(1);
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}
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} else if (ispunct(command[cursor])) {
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while (cursor > 0 &&
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(ispunct(command[cursor-1])))
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while (cursor > 0 && ispunct(command[cursor-1]))
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input_backward(1);
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}
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}
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@ -1341,7 +1344,6 @@ vi_back_motion(char *command)
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int cmdedit_read_input(char *prompt, char command[BUFSIZ])
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{
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int break_out = 0;
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int lastWasTab = FALSE;
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unsigned char c;
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@ -1379,7 +1381,6 @@ int cmdedit_read_input(char *prompt, char command[BUFSIZ])
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parse_prompt(prompt);
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while (1) {
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fflush(stdout); /* buffered out to fast */
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if (safe_read(0, &c, 1) < 1)
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@ -1393,8 +1394,7 @@ int cmdedit_read_input(char *prompt, char command[BUFSIZ])
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if (vi_cmdmode)
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ic |= vbit;
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#endif
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switch (ic)
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{
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switch (ic) {
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case '\n':
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case '\r':
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vi_case( case '\n'|vbit: )
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@ -1472,7 +1472,7 @@ prepare_to_die:
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break;
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case CNTRL('K'):
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/* Control-k -- clear to end of line */
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*(command + cursor) = 0;
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command[cursor] = 0;
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len = cursor;
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printf("\033[J");
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break;
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@ -1570,8 +1570,7 @@ prepare_to_die:
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case 'c'|vbit:
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vi_cmdmode = 0;
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/* fall through */
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case 'd'|vbit:
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{
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case 'd'|vbit: {
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int nc, sc;
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sc = cursor;
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prevc = ic;
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@ -1627,8 +1626,8 @@ prepare_to_die:
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input_delete(1);
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break;
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}
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}
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break;
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}
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case 'p'|vbit:
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input_forward();
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/* fallthrough */
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@ -1802,7 +1801,7 @@ rewrite_line:
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/* After max history, remove the oldest command */
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if (i >= MAX_HISTORY) {
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free(history[0]);
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for(i = 0; i < (MAX_HISTORY-1); i++)
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for(i = 0; i < MAX_HISTORY-1; i++)
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history[i] = history[i+1];
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}
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history[i++] = xstrdup(command);
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@ -1849,9 +1848,9 @@ int main(int argc, char **argv)
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char buff[BUFSIZ];
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char *prompt =
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#if ENABLE_FEATURE_SH_FANCY_PROMPT
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"\\[\\033[32;1m\\]\\u@\\[\\x1b[33;1m\\]\\h:\
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\\[\\033[34;1m\\]\\w\\[\\033[35;1m\\] \
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\\!\\[\\e[36;1m\\]\\$ \\[\\E[0m\\]";
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"\\[\\033[32;1m\\]\\u@\\[\\x1b[33;1m\\]\\h:"
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"\\[\\033[34;1m\\]\\w\\[\\033[35;1m\\] "
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"\\!\\[\\e[36;1m\\]\\$ \\[\\E[0m\\]";
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#else
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"% ";
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#endif
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@ -1862,12 +1861,10 @@ int main(int argc, char **argv)
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while (1) {
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int l;
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l = cmdedit_read_input(prompt, buff);
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if (l > 0 && buff[l-1] == '\n') {
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if (l <= 0 || buff[l-1] != '\n')
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break;
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buff[l-1] = 0;
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printf("*** cmdedit_read_input() returned line =%s=\n", buff);
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} else {
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break;
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}
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}
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printf("*** cmdedit_read_input() detect ^D\n");
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return 0;
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