vserver 1.9.3

[linux-2.6.git] / scripts / kconfig / mconf.c

diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index 6f8bf99..91789cc 100644 (file)
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -18,6 +18,7 @@
 #include <string.h>
 #include <termios.h>
 #include <unistd.h>
+#include <regex.h>
 
 #define LKC_DIRECT_LINK
 #include "lkc.h"
@@ -28,7 +29,7 @@ static const char menu_instructions[] =
        "<Enter> selects submenus --->.  "
        "Highlighted letters are hotkeys.  "
        "Pressing <Y> includes, <N> excludes, <M> modularizes features.  "
-       "Press <Esc><Esc> to exit, <?> for Help.  "
+       "Press <Esc><Esc> to exit, <?> for Help, </> for Search.  "
        "Legend: [*] built-in  [ ] excluded  <M> module  < > module capable",
 radiolist_instructions[] =
        "Use the arrow keys to navigate this window or "
@@ -102,6 +103,10 @@ static void show_textbox(const char *title, const char *text, int r, int c);
 static void show_helptext(const char *title, const char *text);
 static void show_help(struct menu *menu);
 static void show_readme(void);
+static void show_file(const char *filename, const char *title, int r, int c);
+static void show_expr(struct menu *menu, FILE *fp);
+static void search_conf(char *pattern);
+static int regex_match(const char *string, regex_t *re);
 
 static void cprint_init(void);
 static int cprint1(const char *fmt, ...);
@@ -274,6 +279,114 @@ static int exec_conf(void)
        return WEXITSTATUS(stat);
 }
 
+static int regex_match(const char *string, regex_t *re)
+{
+       int rc;
+
+       rc = regexec(re, string, (size_t) 0, NULL, 0);
+       if (rc)
+               return 0;
+       return 1;
+}
+
+static void show_expr(struct menu *menu, FILE *fp)
+{
+       bool hit = false;
+       fprintf(fp, "Depends:\n ");
+       if (menu->prompt->visible.expr) {
+               if (!hit)
+                       hit = true;
+               expr_fprint(menu->prompt->visible.expr, fp);
+       }
+       if (!hit)
+               fprintf(fp, "None");
+       if (menu->sym) {
+               struct property *prop;
+               hit = false;
+               fprintf(fp, "\nSelects:\n ");
+               for_all_properties(menu->sym, prop, P_SELECT) {
+                       if (!hit)
+                               hit = true;
+                       expr_fprint(prop->expr, fp);
+               }
+               if (!hit)
+                       fprintf(fp, "None");
+               hit = false;
+               fprintf(fp, "\nSelected by:\n ");
+               if (menu->sym->rev_dep.expr) {
+                       hit = true;
+                       expr_fprint(menu->sym->rev_dep.expr, fp);
+               }
+               if (!hit)
+                       fprintf(fp, "None");
+       }
+}
+
+static void search_conf(char *pattern)
+{
+       struct symbol *sym = NULL;
+       struct menu *menu[32] = { 0 };
+       struct property *prop = NULL;
+       FILE *fp = NULL;
+       bool hit = false;
+       int i, j, k, l;
+       regex_t re;
+
+       if (regcomp(&re, pattern, REG_EXTENDED|REG_NOSUB))
+               return;
+
+       fp = fopen(".search.tmp", "w");
+       if (fp == NULL) {
+               perror("fopen");
+               return;
+       }
+       for_all_symbols(i, sym) {
+               if (!sym->name)
+                       continue;
+               if (!regex_match(sym->name, &re))
+                       continue;
+               for_all_prompts(sym, prop) {
+                       struct menu *submenu = prop->menu;
+                       if (!submenu)
+                               continue;
+                       j = 0;
+                       hit = false;
+                       while (submenu) {
+                               menu[j++] = submenu;
+                               submenu = submenu->parent;
+                       }
+                       if (j > 0) {
+                               if (!hit)
+                                       hit = true;
+                               fprintf(fp, "%s (%s)\n", prop->text, sym->name);
+                               fprintf(fp, "Location:\n");
+                       }
+                       for (k = j-2, l=1; k > 0; k--, l++) {
+                               const char *prompt = menu_get_prompt(menu[k]);
+                               if (menu[k]->sym)
+                                       fprintf(fp, "%*c-> %s (%s)\n",
+                                                               l, ' ',
+                                                               prompt,
+                                                               menu[k]->sym->name);
+                               else
+                                       fprintf(fp, "%*c-> %s\n",
+                                                               l, ' ',
+                                                               prompt);
+                       }
+                       if (hit) {
+                               show_expr(menu[0], fp);
+                               fprintf(fp, "\n\n\n");
+                       }
+               }
+       }
+       if (!hit)
+               fprintf(fp, "No matches found.");
+       regfree(&re);
+       fclose(fp);
+       show_file(".search.tmp", "Search Results", rows, cols);
+       unlink(".search.tmp");
+}
+
 static void build_conf(struct menu *menu)
 {
        struct symbol *sym;
@@ -463,6 +576,23 @@ static void conf(struct menu *menu)
                        cprint("    Save Configuration to an Alternate File");
                }
                stat = exec_conf();
+               if (stat == 26) {
+                       char *pattern;
+
+                       if (!strlen(input_buf))
+                               continue;
+                       pattern = malloc(sizeof(char)*sizeof(input_buf));
+                       if (pattern == NULL) {
+                               perror("malloc");
+                               continue;
+                       }
+                       for (i = 0; input_buf[i]; i++)
+                               pattern[i] = toupper(input_buf[i]);
+                       pattern[i] = '\0';
+                       search_conf(pattern);
+                       free(pattern);
+                       continue;
+               }
                if (stat < 0)
                        continue;
 
@@ -550,17 +680,7 @@ static void show_textbox(const char *title, const char *text, int r, int c)
        fd = creat(".help.tmp", 0777);
        write(fd, text, strlen(text));
        close(fd);
-       do {
-               cprint_init();
-               if (title) {
-                       cprint("--title");
-                       cprint("%s", title);
-               }
-               cprint("--textbox");
-               cprint(".help.tmp");
-               cprint("%d", r);
-               cprint("%d", c);
-       } while (exec_conf() < 0);
+       show_file(".help.tmp", title, r, c);
        unlink(".help.tmp");
 }
 
@@ -588,14 +708,23 @@ static void show_help(struct menu *menu)
 }
 
 static void show_readme(void)
+{
+       show_file("scripts/README.Menuconfig", NULL, rows, cols);
+}
+
+static void show_file(const char *filename, const char *title, int r, int c)
 {
        do {
                cprint_init();
+               if (title) {
+                       cprint("--title");
+                       cprint("%s", title);
+               }
                cprint("--textbox");
-               cprint("scripts/README.Menuconfig");
-               cprint("%d", rows);
-               cprint("%d", cols);
-       } while (exec_conf() == -1);
+               cprint("%s", filename);
+               cprint("%d", r);
+               cprint("%d", c);
+       } while (exec_conf() < 0);
 }
 
 static void conf_choice(struct menu *menu)