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109 lines
2.3 KiB
C
109 lines
2.3 KiB
C
/* radare - LGPL - Copyright 2008-2015 - pancake */
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#include <r_cons.h>
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#define I r_cons_singleton()
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/* TODO: remove global vars */
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static char *path = NULL;
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static char prompt[32];
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static int _n;
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static char *lines = NULL;
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static int nlines;
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static int bytes;
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static void setnewline(int old) {
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snprintf (prompt, sizeof (prompt), "%d: ", _n);
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r_line_set_prompt (prompt);
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strncpy (I->line->buffer.data, r_str_word_get0 (lines, _n),
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sizeof (I->line->buffer.data) - 1);
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I->line->buffer.data[sizeof (I->line->buffer.data) - 1] = '\0';
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I->line->buffer.index = I->line->buffer.length = strlen (I->line->buffer.data);
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I->line->contents = I->line->buffer.data;
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}
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static void saveline (int n, const char *str) {
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char *out;
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if (!str) return;
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out = r_str_word_get0set (lines, bytes, _n, str, &bytes);
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free (lines);
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lines = out;
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}
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static int up(void *n) {
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int old = _n;
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if (_n>0) _n--;
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setnewline (old);
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return -1;
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}
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static int down(void *n) {
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int old = _n;
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#if 0
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if (_n<(nlines-1))
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#endif
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_n++;
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setnewline (old);
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return -1;
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}
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static void filesave () {
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char buf[128];
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int i;
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if (!path) {
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eprintf ("File: ");
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buf[0] = 0;
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fgets (buf, sizeof(buf), stdin);
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i = strlen (buf);
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if (i>0) {
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buf[i-1] = 0;
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free (path);
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path = strdup (buf);
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}
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}
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if (lines) {
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for (i=0; i<bytes; i++) {
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if (lines[i]=='\0')
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lines[i]='\n';
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}
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}
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if (r_file_dump (path, (const ut8*)lines, bytes))
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eprintf ("File '%s' saved (%d bytes)\n", path, bytes);
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else eprintf ("Cannot save file\n");
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// restore back zeroes
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nlines = r_str_split (lines, '\n');
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}
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R_API char *r_cons_editor (const char *file, const char *str) {
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const char *line;
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_n = 0;
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if (I->editor) {
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return I->editor (I->user, file, str);
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}
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free (path);
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if (file) {
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path = strdup (file);
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bytes = 0;
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lines = r_file_slurp (file, &bytes);
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nlines = r_str_split (lines, '\n');
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eprintf ("Loaded %d lines on %d bytes\n",
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(nlines?(nlines-1):0), bytes);
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} else path = NULL;
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I->line->hist_up = up;
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I->line->hist_down = down;
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I->line->contents = I->line->buffer.data;
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for (;;) {
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setnewline (_n);
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snprintf (prompt, sizeof (prompt), "%d: ", _n);
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r_line_set_prompt (prompt);
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line = r_line_readline ();
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saveline (_n, line);
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_n++;
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if (!line) break;
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}
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filesave ();
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I->line->hist_up =
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I->line->hist_down = NULL;
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I->line->contents = NULL;
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return lines;
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}
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