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12a8680 Apr 12, 2016
@antirez @pietern
75 lines (66 sloc) 2.37 KB
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "linenoise.h"
void completion(const char *buf, linenoiseCompletions *lc) {
if (buf[0] == 'h') {
linenoiseAddCompletion(lc,"hello");
linenoiseAddCompletion(lc,"hello there");
}
}
char *hints(const char *buf, int *color, int *bold) {
if (!strcasecmp(buf,"hello")) {
*color = 35;
*bold = 0;
return " World";
}
return NULL;
}
int main(int argc, char **argv) {
char *line;
char *prgname = argv[0];
/* Parse options, with --multiline we enable multi line editing. */
while(argc > 1) {
argc--;
argv++;
if (!strcmp(*argv,"--multiline")) {
linenoiseSetMultiLine(1);
printf("Multi-line mode enabled.\n");
} else if (!strcmp(*argv,"--keycodes")) {
linenoisePrintKeyCodes();
exit(0);
} else {
fprintf(stderr, "Usage: %s [--multiline] [--keycodes]\n", prgname);
exit(1);
}
}
/* Set the completion callback. This will be called every time the
* user uses the <tab> key. */
linenoiseSetCompletionCallback(completion);
linenoiseSetHintsCallback(hints);
/* Load history from file. The history file is just a plain text file
* where entries are separated by newlines. */
linenoiseHistoryLoad("history.txt"); /* Load the history at startup */
/* Now this is the main loop of the typical linenoise-based application.
* The call to linenoise() will block as long as the user types something
* and presses enter.
*
* The typed string is returned as a malloc() allocated string by
* linenoise, so the user needs to free() it. */
while((line = linenoise("hello> ")) != NULL) {
/* Do something with the string. */
if (line[0] != '\0' && line[0] != '/') {
printf("echo: '%s'\n", line);
linenoiseHistoryAdd(line); /* Add to the history. */
linenoiseHistorySave("history.txt"); /* Save the history on disk. */
} else if (!strncmp(line,"/historylen",11)) {
/* The "/historylen" command will change the history len. */
int len = atoi(line+11);
linenoiseHistorySetMaxLen(len);
} else if (line[0] == '/') {
printf("Unreconized command: %s\n", line);
}
free(line);
}
return 0;
}