#include "FvwmConsole.h" #ifndef HAVE_READLINE static char cmd[MAX_COMMAND_SIZE]; /* no readline - starts here */ char *get_line() { if( fgets(cmd,MAX_COMMAND_SIZE,stdin) == NULL ) { return(NULL); } return(cmd); } #else /* readline - starts here */ #include #include extern int rl_bind_key(); static char cmd[MAX_COMMAND_SIZE]; static char *line = (char *)NULL; static int done_init = 0; static char *h_file; char *get_line() { char *prompt; int len; char *home; int fdh; /* If initialization hasn't been done, do it now: * - We don't want TAB completion */ if (!done_init) { rl_bind_key('\t', rl_insert); /* get history from file */ home = getenv("HOME"); h_file = safemalloc( strlen(home)+ 14); strcpy(h_file,home); strcat(h_file,HISTFILE); if( access( h_file, F_OK) < 0) { /* if it doesn't exist create it */ fdh = creat( h_file, S_IRUSR | S_IWUSR ); if( fdh != -1 ) { close( fdh ); } } else { read_history_range( h_file, 0, HISTSIZE ); } done_init = 1; } /* Empty out the previous info */ len = 0; *cmd = '\0'; prompt = PS1; while (1) { int linelen = 0; /* If the buffer has already been allocated, free the memory. */ if (line != (char *)NULL) free(line); /* Get a line from the user. */ line = readline(prompt); if (line == NULL) return (NULL); /* Make sure we have enough space for the new line */ linelen = strlen(line); if (len + linelen > MAX_COMMAND_SIZE-2 ) { fprintf( stderr, "line too long %d chars max %d \a\n", len+linelen, MAX_COMMAND_SIZE-2 ); strncat(cmd, line, MAX_COMMAND_SIZE-len-2); add_history(cmd); break; } /* Copy the new line onto the end of the current line */ strcat(cmd, line); /* If the current line doesn't end with a backslash, we're done */ len = strlen(cmd); if (cmd[len-1] != '\\') break; /* Otherwise, remove it and wait for more (add a space if needed) */ prompt = PS2; cmd[len-1] = (cmd[len-2]==' ' || cmd[len-2]=='\t') ? '\0' : ' '; } /* If the command has any text in it, save it on the history. */ if (*cmd != '\0') { add_history(cmd); append_history( 1,h_file ); history_truncate_file( h_file, HISTSIZE ); } cmd[len] = '\n'; cmd[len+1] = '\0'; return (cmd); } /* readline - end here */ #endif