diff options
Diffstat (limited to 'contrib/ncurses/ncurses/tinfo/add_tries.c')
| -rw-r--r-- | contrib/ncurses/ncurses/tinfo/add_tries.c | 131 |
1 files changed, 66 insertions, 65 deletions
diff --git a/contrib/ncurses/ncurses/tinfo/add_tries.c b/contrib/ncurses/ncurses/tinfo/add_tries.c index 95a9e965c5a7..601fb663b7b6 100644 --- a/contrib/ncurses/ncurses/tinfo/add_tries.c +++ b/contrib/ncurses/ncurses/tinfo/add_tries.c @@ -1,5 +1,5 @@ /**************************************************************************** - * Copyright (c) 1998 Free Software Foundation, Inc. * + * Copyright (c) 1998,2000 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the * @@ -39,86 +39,87 @@ #include <curses.priv.h> -MODULE_ID("$Id: add_tries.c,v 1.1 1998/11/08 00:04:18 tom Exp $") +MODULE_ID("$Id: add_tries.c,v 1.2 2000/03/18 22:23:56 tom Exp $") #define SET_TRY(dst,src) if ((dst->ch = *src++) == 128) dst->ch = '\0' #define CMP_TRY(a,b) ((a)? (a == b) : (b == 128)) -void _nc_add_to_try(struct tries **tree, char *str, unsigned short code) +void +_nc_add_to_try(struct tries **tree, const char *str, unsigned short code) { - static bool out_of_memory = FALSE; - struct tries *ptr, *savedptr; - unsigned char *txt = (unsigned char *)str; - - if (txt == 0 || *txt == '\0' || out_of_memory || code == 0) - return; - - if ((*tree) != 0) { - ptr = savedptr = (*tree); - - for (;;) { - unsigned char cmp = *txt; - - while (!CMP_TRY(ptr->ch, cmp) - && ptr->sibling != 0) - ptr = ptr->sibling; - - if (CMP_TRY(ptr->ch, cmp)) { - if (*(++txt) == '\0') { - ptr->value = code; - return; - } - if (ptr->child != 0) - ptr = ptr->child; - else - break; - } else { - if ((ptr->sibling = typeCalloc(struct tries,1)) == 0) { - out_of_memory = TRUE; - return; - } - - savedptr = ptr = ptr->sibling; - SET_TRY(ptr,txt); - ptr->value = 0; - - break; - } - } /* end for (;;) */ - } else { /* (*tree) == 0 :: First sequence to be added */ - savedptr = ptr = (*tree) = typeCalloc(struct tries,1); - - if (ptr == 0) { - out_of_memory = TRUE; - return; + static bool out_of_memory = FALSE; + struct tries *ptr, *savedptr; + unsigned const char *txt = (unsigned const char *) str; + + if (txt == 0 || *txt == '\0' || out_of_memory || code == 0) + return; + + if ((*tree) != 0) { + ptr = savedptr = (*tree); + + for (;;) { + unsigned char cmp = *txt; + + while (!CMP_TRY(ptr->ch, cmp) + && ptr->sibling != 0) + ptr = ptr->sibling; + + if (CMP_TRY(ptr->ch, cmp)) { + if (*(++txt) == '\0') { + ptr->value = code; + return; + } + if (ptr->child != 0) + ptr = ptr->child; + else + break; + } else { + if ((ptr->sibling = typeCalloc(struct tries, 1)) == 0) { + out_of_memory = TRUE; + return; } - SET_TRY(ptr,txt); + savedptr = ptr = ptr->sibling; + SET_TRY(ptr, txt); ptr->value = 0; + + break; + } + } /* end for (;;) */ + } else { /* (*tree) == 0 :: First sequence to be added */ + savedptr = ptr = (*tree) = typeCalloc(struct tries, 1); + + if (ptr == 0) { + out_of_memory = TRUE; + return; } - /* at this point, we are adding to the try. ptr->child == 0 */ + SET_TRY(ptr, txt); + ptr->value = 0; + } - while (*txt) { - ptr->child = typeCalloc(struct tries,1); + /* at this point, we are adding to the try. ptr->child == 0 */ - ptr = ptr->child; + while (*txt) { + ptr->child = typeCalloc(struct tries, 1); - if (ptr == 0) { - out_of_memory = TRUE; + ptr = ptr->child; - while ((ptr = savedptr) != 0) { - savedptr = ptr->child; - free(ptr); - } + if (ptr == 0) { + out_of_memory = TRUE; - return; - } + while ((ptr = savedptr) != 0) { + savedptr = ptr->child; + free(ptr); + } - SET_TRY(ptr,txt); - ptr->value = 0; + return; } - ptr->value = code; - return; + SET_TRY(ptr, txt); + ptr->value = 0; + } + + ptr->value = code; + return; } |