jag

jagParse_c

public

parser lib for my games

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4 commits1 branch6 tags0 releases27.5 KiB

Commit 9a3b392c93a7

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Jaglekon <58274093+Jaglekon@users.noreply.github.com>2026-08-26 16:48 UTC

8 files changed+199-131
version 1.0.1
CMakeLists.txt+6−3
@@ -1,13 +1,16 @@
11 cmake_minimum_required(VERSION 3.20)
22 project(jag_parser C)
33
4-add_library(jag_parser STATIC
4+add_library(jag_parse STATIC
55 source/parser.c
66 )
77
8-target_include_directories(jag_parser PUBLIC
8+target_include_directories(jag_parse PUBLIC
99 ${CMAKE_CURRENT_SOURCE_DIR}/include
1010 )
1111
12-target_compile_options(jag_parser PRIVATE
12+target_compile_options(jag_parse PRIVATE
13+ -Wextra
14+ -Wall
15+ -Wpedantic
1316 )
flake.lock+27
@@ -0,0 +1,27 @@
1+{
2+ "nodes": {
3+ "nixpkgs": {
4+ "locked": {
5+ "lastModified": 1787498568,
6+ "narHash": "sha256-9i/VTdusq/+NM/tz+J1Re+ojkMB8MBf0QshnYfzHz30=",
7+ "owner": "NixOS",
8+ "repo": "nixpkgs",
9+ "rev": "56c02bc00adcf003215cc4bd996d6efaf4cff188",
10+ "type": "github"
11+ },
12+ "original": {
13+ "owner": "NixOS",
14+ "ref": "nixos-unstable",
15+ "repo": "nixpkgs",
16+ "type": "github"
17+ }
18+ },
19+ "root": {
20+ "inputs": {
21+ "nixpkgs": "nixpkgs"
22+ }
23+ }
24+ },
25+ "root": "root",
26+ "version": 7
27+}
flake.nix+37
@@ -0,0 +1,37 @@
1+{
2+ description = "Jaglekon's parser library";
3+
4+ inputs = {
5+ nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
6+ };
7+
8+ outputs = {
9+ self,
10+ nixpkgs,
11+ }: let
12+ system = "x86_64-linux";
13+ pkgs = import nixpkgs {inherit system;};
14+ in {
15+ packages.${system}.default = pkgs.stdenv.mkDerivation {
16+ pname = "jag_parse";
17+ version = "1.0.1";
18+
19+ src = ./.;
20+
21+ buildPhase = ''
22+ $CC -c source/jag_parse.c \
23+ -Iinclude \
24+ -o jag_parse.o
25+ $AR rcs jag_parse.a jag_parse.o
26+ '';
27+
28+ installPhase = ''
29+ mkdir -p $out/lib
30+ mkdir -p $out/include
31+
32+ cp jag_parse.a $out/lib
33+ cp include/jag_parse.h $out/include
34+ '';
35+ };
36+ };
37+}
include/jag_parse.h+22
@@ -0,0 +1,22 @@
1+#ifndef PARSER_H
2+#define PARSER_H
3+
4+#include <string.h>
5+#include <ctype.h>
6+#include <stdint.h>
7+#include <stdbool.h>
8+
9+#define BUF_LEN 4096
10+#define ARROW_LEN 3
11+
12+typedef enum {
13+ NO_KEY, P_KEY, Q_KEY, LEFT_ARROW, RIGHT_ARROW, UP_ARROW, DOWN_ARROW, INCOMPLETE, UNKNOWN
14+} keypress;
15+
16+int add_to_buf(uint8_t *input, uint16_t input_length);
17+
18+keypress parse_input();
19+
20+void break_unfinished();
21+
22+#endif
include/parser.h−22
@@ -1,22 +0,0 @@
1-#ifndef PARSER_H
2-#define PARSER_H
3-
4-#include <string.h>
5-#include <ctype.h>
6-#include <stdint.h>
7-#include <stdbool.h>
8-
9-#define BUF_LEN 4096
10-#define ARROW_LEN 3
11-
12-typedef enum {
13- NO_KEY, P_KEY, Q_KEY, LEFT_ARROW, RIGHT_ARROW, UP_ARROW, DOWN_ARROW, INCOMPLETE, UNKNOWN
14-} keypress;
15-
16-int add_to_buf(uint8_t *input, uint16_t input_length);
17-
18-keypress parse_input();
19-
20-void break_unfinished();
21-
22-#endif
result+1
@@ -0,0 +1 @@
1+/nix/store/lqi15sh8mmswdlnd09l5xsaxf7a4gc1s-jag_parse-1.0.1
source/jag_parse.c+106
@@ -0,0 +1,106 @@
1+#include <jag_parse.h>
2+
3+uint8_t main_buffer[BUF_LEN];
4+
5+uint16_t start = 0;
6+uint16_t end = 0;
7+
8+uint16_t length = 0;
9+
10+
11+int add_to_buf(uint8_t *input, uint16_t input_length) {
12+
13+ if (BUF_LEN - length < input_length)
14+ return 0;
15+
16+ uint16_t space_end = BUF_LEN - end;
17+
18+ if (input_length <= space_end) {
19+ memcpy(main_buffer + end, input, input_length);
20+ } else {
21+ memcpy(main_buffer + end, input, space_end);
22+ memcpy(main_buffer, input + space_end, input_length - space_end);
23+ }
24+
25+ end = (end + input_length) % BUF_LEN;
26+ length += input_length;
27+
28+ return 1;
29+}
30+
31+
32+uint16_t next_pos(uint16_t starting_position) {
33+ return (starting_position + 1) % BUF_LEN;
34+}
35+
36+
37+keypress parse_input() {
38+
39+ if(length == 0)
40+ return NO_KEY;
41+
42+ keypress output = UNKNOWN;
43+
44+ uint8_t next_char = tolower(main_buffer[start]);
45+ uint16_t next_position = next_pos(start);
46+
47+
48+ if (next_char == '\033') {
49+
50+ if (length < ARROW_LEN) {
51+ output = INCOMPLETE;
52+ next_position = start;
53+ } else {
54+
55+ length--;
56+
57+ if (main_buffer[next_position] == '[') {
58+ next_position = next_pos(next_position);
59+
60+ length--;
61+
62+ uint8_t escape_code = main_buffer[next_position];
63+
64+ switch(escape_code) {
65+ case 'A':
66+ output = UP_ARROW;
67+ break;
68+ case 'B':
69+ output = DOWN_ARROW;
70+ break;
71+ case 'C':
72+ output = RIGHT_ARROW;
73+ break;
74+ case 'D':
75+ output = LEFT_ARROW;
76+ break;
77+ default:
78+ break;
79+ }
80+
81+ length--;
82+
83+ next_position = next_pos(next_position);
84+ }
85+ }
86+
87+ } else {
88+
89+ length--;
90+
91+ if (next_char == 'p') {
92+ output = P_KEY;
93+ } else if(next_char == 'q') {
94+ output = Q_KEY;
95+ }
96+ }
97+
98+ start = next_position;
99+
100+ return output;
101+}
102+
103+void break_unfinished() {
104+ while (length--)
105+ start = next_pos(start);
106+}
source/parser.c−106
@@ -1,106 +0,0 @@
1-#include <parser.h>
2-
3-uint8_t main_buffer[BUF_LEN];
4-
5-uint16_t start = 0;
6-uint16_t end = 0;
7-
8-uint16_t length = 0;
9-
10-
11-int add_to_buf(uint8_t *input, uint16_t input_length) {
12-
13- if (BUF_LEN - length < input_length)
14- return 0;
15-
16- uint16_t space_end = BUF_LEN - end;
17-
18- if (input_length <= space_end) {
19- memcpy(main_buffer + end, input, input_length);
20- } else {
21- memcpy(main_buffer + end, input, space_end);
22- memcpy(main_buffer, input + space_end, input_length - space_end);
23- }
24-
25- end = (end + input_length) % BUF_LEN;
26- length += input_length;
27-
28- return 1;
29-}
30-
31-
32-uint16_t next_pos(uint16_t starting_position) {
33- return (starting_position + 1) % BUF_LEN;
34-}
35-
36-
37-keypress parse_input() {
38-
39- if(length == 0)
40- return NO_KEY;
41-
42- keypress output = UNKNOWN;
43-
44- uint8_t next_char = tolower(main_buffer[start]);
45- uint16_t next_position = next_pos(start);
46-
47-
48- if (next_char == '\033') {
49-
50- if (length < ARROW_LEN) {
51- output = INCOMPLETE;
52- next_position = start;
53- } else {
54-
55- length--;
56-
57- if (main_buffer[next_position] == '[') {
58- next_position = next_pos(next_position);
59-
60- length--;
61-
62- uint8_t escape_code = main_buffer[next_position];
63-
64- switch(escape_code) {
65- case 'A':
66- output = UP_ARROW;
67- break;
68- case 'B':
69- output = DOWN_ARROW;
70- break;
71- case 'C':
72- output = RIGHT_ARROW;
73- break;
74- case 'D':
75- output = LEFT_ARROW;
76- break;
77- default:
78- break;
79- }
80-
81- length--;
82-
83- next_position = next_pos(next_position);
84- }
85- }
86-
87- } else {
88-
89- length--;
90-
91- if (next_char == 'p') {
92- output = P_KEY;
93- } else if(next_char == 'q') {
94- output = Q_KEY;
95- }
96- }
97-
98- start = next_position;
99-
100- return output;
101-}
102-
103-void break_unfinished() {
104- while (length--)
105- start = next_pos(start);
106-}