diff options
Diffstat (limited to 'gdb/top.c')
| -rw-r--r-- | gdb/top.c | 40 |
1 files changed, 18 insertions, 22 deletions
@@ -50,6 +50,7 @@ #include "maint.h" #include "filenames.h" #include "frame.h" +#include "buffer.h" /* readline include files. */ #include "readline/readline.h" @@ -603,65 +604,60 @@ prevent_dont_repeat (void) /* Read a line from the stream "instream" without command line editing. - It prints PROMPT_ARG once at the start. + It prints PROMPT once at the start. Action is compatible with "readline", e.g. space for the result is malloc'd and should be freed by the caller. A NULL return means end of file. */ static char * -gdb_readline_no_editing (const char *prompt_arg) +gdb_readline_no_editing (const char *prompt) { - int c; - char *result; - int input_index = 0; - int result_size = 80; + struct buffer line_buffer; - if (prompt_arg) + buffer_init (&line_buffer); + + if (prompt != NULL) { /* Don't use a _filtered function here. It causes the assumed character position to be off, since the newline we read from the user is not accounted for. */ - fputs_unfiltered (prompt_arg, gdb_stdout); + fputs_unfiltered (prompt, gdb_stdout); gdb_flush (gdb_stdout); } - result = (char *) xmalloc (result_size); - while (1) { + int c; + /* Read from stdin if we are executing a user defined command. This is the right thing for prompt_for_continue, at least. */ c = fgetc (instream ? instream : stdin); if (c == EOF) { - if (input_index > 0) + if (line_buffer.used_size > 0) /* The last line does not end with a newline. Return it, and if we are called again fgetc will still return EOF and we'll return NULL then. */ break; - xfree (result); + xfree (buffer_finish (&line_buffer)); return NULL; } if (c == '\n') { - if (input_index > 0 && result[input_index - 1] == '\r') - input_index--; + if (line_buffer.used_size > 0 + && line_buffer.buffer[line_buffer.used_size - 1] == '\r') + line_buffer.used_size--; break; } - result[input_index++] = c; - while (input_index >= result_size) - { - result_size *= 2; - result = (char *) xrealloc (result, result_size); - } + buffer_grow_char (&line_buffer, c); } - result[input_index++] = '\0'; - return result; + buffer_grow_char (&line_buffer, '\0'); + return buffer_finish (&line_buffer); } /* Variables which control command line editing and history |