musique/lib/bestline/example.c

80 lines
2.4 KiB
C

#include "bestline.h"
#ifndef __COSMOPOLITAN__
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#endif
#if 0
// should be ~50kb statically linked
// will save history to ~/.foo_history
// cc -fno-jump-tables -Os -o foo foo.c bestline.c
int main() {
char *line;
while ((line = bestlineWithHistory("IN> ", "foo"))) {
fputs("OUT> ", stdout);
fputs(line, stdout);
fputs("\n", stdout);
free(line);
}
}
#endif
void completion(const char *buf, bestlineCompletions *lc) {
if (buf[0] == 'h') {
bestlineAddCompletion(lc,"hello");
bestlineAddCompletion(lc,"hello there");
}
}
char *hints(const char *buf, const char **ansi1, const char **ansi2) {
if (!strcmp(buf,"hello")) {
*ansi1 = "\033[35m"; /* magenta foreground */
*ansi2 = "\033[39m"; /* reset foreground */
return " World";
}
return NULL;
}
int main(int argc, char **argv) {
char *line;
/* Set the completion callback. This will be called every time the
* user uses the <tab> key. */
bestlineSetCompletionCallback(completion);
bestlineSetHintsCallback(hints);
/* Load history from file. The history file is just a plain text file
* where entries are separated by newlines. */
bestlineHistoryLoad("history.txt"); /* Load the history at startup */
/* Now this is the main loop of the typical bestline-based application.
* The call to bestline() will block as long as the user types something
* and presses enter.
*
* The typed string is returned as a malloc() allocated string by
* bestline, so the user needs to free() it. */
while((line = bestline("hello> ")) != NULL) {
/* Do something with the string. */
if (line[0] != '\0' && line[0] != '/') {
fputs("echo: '", stdout);
fputs(line, stdout);
fputs("'\n", stdout);
bestlineHistoryAdd(line); /* Add to the history. */
bestlineHistorySave("history.txt"); /* Save the history on disk. */
} else if (!strncmp(line, "/mask", 5)) {
bestlineMaskModeEnable();
} else if (!strncmp(line, "/unmask", 7)) {
bestlineMaskModeDisable();
} else if (line[0] == '/') {
fputs("Unreconized command: ", stdout);
fputs(line, stdout);
fputs("\n", stdout);
}
free(line);
}
return 0;
}