114 lines
2.9 KiB
C
114 lines
2.9 KiB
C
#include "cli.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "argument_yy.tab.h"
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int * arg_tokens;
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void version() {
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puts(
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# include "version.inc"
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);
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}
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void usage(void) {
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puts(
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"histui [options] <verb>\n"
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"\tOptions:\n"
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"\t\t-v --version\n"
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"\t\t-h --help\n"
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"\tVerbs:\n"
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"\t\tenable : print a bash script to enable histui in the current shell\n"
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"\t\ttui [tui-options] : run histui normally\n"
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"\t\t\t--caseless : ignore case while searching\n"
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"\t\t\t--fuzzy : employ fuzzy searching\n"
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);
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}
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void enable(void) {
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// XXX one day...
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/*
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puts(
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# embed "histui_enable.sh.inc"
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);
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*/
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puts(
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"function _histui_run() {\n"
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" COMMANDFILE=\"${XDG_CACHE_HOME}/histui_command.txt\"\n"
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" if ! [ -v HISTUICMD ]; then\n"
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" HISTUICMD=\"histui tui\"\n"
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" fi\n"
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" HISTFILE=$HISTFILE ${HISTUICMD} 3> \"${COMMANDFILE}\"\n"
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" READLINE_LINE=$(cat \"${COMMANDFILE}\")\n"
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" READLINE_POINT=${#READLINE_LINE}\n"
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"}\n"
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"\n"
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"bind -x '\"\\e[A\": _histui_run'\n"
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"bind -x '\"\\C-r\": _histui_run'\n"
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);
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}
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int argument_yy_lex(void) {
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static int i = 0;
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return arg_tokens[i++];
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}
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void argument_yy_error([[ maybe_unused ]] const char * const s) {
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fputs("Argument parsing failed.\n", stderr);
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usage();
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exit(2);
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}
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void parse_arguments(const int argc, const char * const * const argv) {
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if (argc < 2) {
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usage();
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exit(1);
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}
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/* Lexical analysis of a poor man.
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* Using Flex would be problematic because our input
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* is not stored in an actual buffer (not in a defined
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* behaviour way anyways).
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*/
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int tokens[argc];
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int token_empty_head = 0;
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for (int i = 1; i < argc; i++) {
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if (!strcmp(argv[i], "--help")
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|| !strcmp(argv[i], "-h")) {
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tokens[token_empty_head++] = HELP;
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} else
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if (!strcmp(argv[i], "--version")
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|| !strcmp(argv[i], "-v")) {
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tokens[token_empty_head++] = VERSION;
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} else
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if (!strcmp(argv[i], "tui")) {
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tokens[token_empty_head++] = TUI;
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} else
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if (!strcmp(argv[i], "enable")) {
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tokens[token_empty_head++] = ENABLE;
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} else
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if (!strcmp(argv[i], "--execute")) {
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tokens[token_empty_head++] = EXECUTE;
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} else
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if (!strcmp(argv[i], "--fuzzy")) {
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tokens[token_empty_head++] = FUZZY;
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} else
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if (!strcmp(argv[i], "--caseless")) {
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tokens[token_empty_head++] = CASELESS;
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} else
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if (!strcmp(argv[i], "--group")) {
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tokens[token_empty_head++] = GROUP;
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} else {
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tokens[token_empty_head++] = YYUNDEF;
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}
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}
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tokens[token_empty_head++] = YYEOF;
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arg_tokens = tokens;
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argument_yy_parse();
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}
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