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Shipwright/OTRGui/libs/raylib/parser/raylib_parser.c

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git subrepo clone (merge) https://github.com/HarbourMasters/otrgui.git OTRGui subrepo: subdir: "OTRGui" merged: "a6066a251" upstream: origin: "https://github.com/HarbourMasters/otrgui.git" branch: "master" commit: "a6066a251" git-subrepo: version: "0.4.1" origin: "???" commit: "???"
2022-03-21 21:53:51 -04:00
/**********************************************************************************************
raylib API parser
This parser scans raylib.h to get API information about structs, enums, functions and defines.
All data is divided into pieces, usually as strings. The following types are used for data:
- struct FunctionInfo
- struct StructInfo
- struct EnumInfo
- struct DefInfo
CONSTRAINTS:
This parser is specifically designed to work with raylib.h, so, it has some constraints:
- Functions are expected as a single line with the following structure:
<retType> <name>(<paramType[0]> <paramName[0]>, <paramType[1]> <paramName[1]>); <desc>
Be careful with functions broken into several lines, it breaks the process!
- Structures are expected as several lines with the following form:
<desc>
typedef struct <name> {
<fieldType[0]> <fieldName[0]>; <fieldDesc[0]>
<fieldType[1]> <fieldName[1]>; <fieldDesc[1]>
<fieldType[2]> <fieldName[2]>; <fieldDesc[2]>
} <name>;
- Enums are expected as several lines with the following form:
<desc>
typedef enum {
<valueName[0]> = <valueInteger[0]>, <valueDesc[0]>
<valueName[1]>,
<valueName[2]>, <valueDesc[2]>
<valueName[3]> <valueDesc[3]>
} <name>;
NOTE: Multiple options are supported for enums:
- If value is not provided, (<valueInteger[i -1]> + 1) is assigned
- Value description can be provided or not
OTHER NOTES:
- This parser could work with other C header files if mentioned constraints are followed.
- This parser does not require <string.h> library, all data is parsed directly from char buffers.
LICENSE: zlib/libpng
raylib-parser is licensed under an unmodified zlib/libpng license, which is an OSI-certified,
BSD-like license that allows static linking with closed source software:
Copyright (c) 2021 Ramon Santamaria (@raysan5)
**********************************************************************************************/
#define _CRT_SECURE_NO_WARNINGS
#include <stdlib.h> // Required for: malloc(), calloc(), realloc(), free(), atoi(), strtol()
#include <stdio.h> // Required for: printf(), fopen(), fseek(), ftell(), fread(), fclose()
#include <stdbool.h> // Required for: bool
#include <ctype.h> // Required for: isdigit()
#define MAX_FUNCS_TO_PARSE 512 // Maximum number of functions to parse
#define MAX_STRUCTS_TO_PARSE 64 // Maximum number of structures to parse
#define MAX_ENUMS_TO_PARSE 64 // Maximum number of enums to parse
#define MAX_DEFINES_TO_PARSE 2048 // Maximum number of defines to parse
#define MAX_LINE_LENGTH 512 // Maximum length of one line (including comments)
#define MAX_STRUCT_LINE_LENGTH 2048 // Maximum length of one struct (multiple lines)
#define MAX_FUNCTION_PARAMETERS 12 // Maximum number of function parameters
#define MAX_STRUCT_FIELDS 32 // Maximum number of struct fields
#define MAX_ENUM_VALUES 512 // Maximum number of enum values
//----------------------------------------------------------------------------------
// Types and Structures Definition
//----------------------------------------------------------------------------------
// Function info data
typedef struct FunctionInfo {
char name[64]; // Function name
char desc[128]; // Function description (comment at the end)
char retType[32]; // Return value type
int paramCount; // Number of function parameters
char paramType[MAX_FUNCTION_PARAMETERS][32]; // Parameters type
char paramName[MAX_FUNCTION_PARAMETERS][32]; // Parameters name
char paramDesc[MAX_FUNCTION_PARAMETERS][128]; // Parameters description
} FunctionInfo;
// Struct info data
typedef struct StructInfo {
char name[64]; // Struct name
char desc[128]; // Struct type description
int fieldCount; // Number of fields in the struct
char fieldType[MAX_STRUCT_FIELDS][64]; // Field type
char fieldName[MAX_STRUCT_FIELDS][64]; // Field name
char fieldDesc[MAX_STRUCT_FIELDS][128]; // Field description
} StructInfo;
// Enum info data
typedef struct EnumInfo {
char name[64]; // Enum name
char desc[128]; // Enum description
int valueCount; // Number of values in enumerator
char valueName[MAX_ENUM_VALUES][64]; // Value name definition
int valueInteger[MAX_ENUM_VALUES]; // Value integer
char valueDesc[MAX_ENUM_VALUES][128]; // Value description
} EnumInfo;
// Type of parsed define
typedef enum { UNKNOWN = 0, MACRO, GUARD, INT, LONG, FLOAT, DOUBLE, CHAR, STRING, COLOR } DefineType;
// Define info data
typedef struct DefineInfo {
char name[64]; // Define name
DefineType type; // Define type
char value[256]; // Define value
char desc[128]; // Define description
bool isHex; // Define is hex number (for types INT, LONG)
} DefineInfo;
// Output format for parsed data
typedef enum { DEFAULT = 0, JSON, XML, LUA } OutputFormat;
//----------------------------------------------------------------------------------
// Global Variables Definition
//----------------------------------------------------------------------------------
static int funcCount = 0;
static int structCount = 0;
static int enumCount = 0;
static int defineCount = 0;
static FunctionInfo *funcs = NULL;
static StructInfo *structs = NULL;
static EnumInfo *enums = NULL;
static DefineInfo *defines = NULL;
static char apiDefine[32] = "RLAPI\0";
// Command line variables
static char inFileName[512] = { 0 }; // Input file name (required in case of provided through CLI)
static char outFileName[512] = { 0 }; // Output file name (required for file save/export)
static int outputFormat = DEFAULT;
//----------------------------------------------------------------------------------
// Module Functions Declaration
//----------------------------------------------------------------------------------
static void ShowCommandLineInfo(void); // Show command line usage info
static void ProcessCommandLine(int argc, char *argv[]); // Process command line input
static char *LoadFileText(const char *fileName, int *length);
static char **GetTextLines(const char *buffer, int length, int *linesCount);
static void GetDataTypeAndName(const char *typeName, int typeNameLen, char *type, char *name);
static unsigned int TextLength(const char *text); // Get text length in bytes, check for \0 character
static bool IsTextEqual(const char *text1, const char *text2, unsigned int count);
static void MemoryCopy(void *dest, const void *src, unsigned int count);
static char *EscapeBackslashes(char *text); // Replace '\' by "\\" when exporting to JSON and XML
static void ExportParsedData(const char *fileName, int format); // Export parsed data in desired format
static const char *StrDefineType(DefineType type); // Get string of define type
//------------------------------------------------------------------------------------
// Program main entry point
//------------------------------------------------------------------------------------
int main(int argc, char* argv[])
{
if (argc > 1) ProcessCommandLine(argc, argv);
if (inFileName[0] == '\0') MemoryCopy(inFileName, "../src/raylib.h\0", 16);
int length = 0;
char *buffer = LoadFileText(inFileName, &length);
// Preprocess buffer to get separate lines
// NOTE: GetTextLines() also removes leading spaces/tabs
int linesCount = 0;
char **lines = GetTextLines(buffer, length, &linesCount);
// Function lines pointers, selected from buffer "lines"
char **funcLines = (char **)malloc(MAX_FUNCS_TO_PARSE*sizeof(char *));
// Structs data (multiple lines), selected from "buffer"
int *structLines = (int *)malloc(MAX_STRUCTS_TO_PARSE*sizeof(int));
// Enums lines pointers, selected from buffer "lines"
int *enumLines = (int *)malloc(MAX_ENUMS_TO_PARSE*sizeof(int));
// Defines lines pointers, selected from buffer "lines"
int *defineLines = (int *)malloc(MAX_DEFINES_TO_PARSE*sizeof(int));
// Prepare required lines for parsing
//--------------------------------------------------------------------------------------------------
// Read function lines
for (int i = 0; i < linesCount; i++)
{
// Read function line (starting with `define`, i.e. for raylib.h "RLAPI")
if (IsTextEqual(lines[i], apiDefine, TextLength(apiDefine)))
{
// Keep a pointer to the function line
funcLines[funcCount] = lines[i];
funcCount++;
}
}
// Read struct lines
for (int i = 0; i < linesCount; i++)
{
// Find structs (starting with "typedef struct ... {", ending with '} ... ;')
if (IsTextEqual(lines[i], "typedef struct", 14))
{
int j = 0;
bool validStruct = false;
// WARNING: Typedefs between types: typedef Vector4 Quaternion;
// (maybe we could export these too?)
for (int c = 0; c < MAX_LINE_LENGTH; c++)
{
char v = lines[i][c];
if (v == '{') validStruct = true;
if (v == '{' || v == ';' || v == '\0')
{
// Not valid struct if it ends without '{':
// i.e typedef struct rAudioBuffer rAudioBuffer; -> Typedef and forward declaration
break;
}
}
if (!validStruct) continue;
structLines[structCount] = i;
while (lines[i][0] != '}') i++;
while (lines[i][0] != '\0') i++;
structCount++;
}
}
// Read enum lines
for (int i = 0; i < linesCount; i++)
{
// Read enum line
if (IsTextEqual(lines[i], "typedef enum {", 14))
{
// Keep the line position in the array of lines,
// so, we can scan that position and following lines
enumLines[enumCount] = i;
enumCount++;
}
}
// Read const lines
for (int i = 0; i < linesCount; i++)
{
int j = 0;
while (lines[i][j] == ' ' || lines[i][j] == '\t') j++; // skip spaces and tabs in the begining
// Read define line
if (IsTextEqual(lines[i]+j, "#define ", 8))
{
// Keep the line position in the array of lines,
// so, we can scan that position and following lines
defineLines[defineCount] = i;
defineCount++;
}
}
// At this point we have all raylib structs, enums, functions, defines lines data to start parsing
free(buffer); // Unload text buffer
// Parsing raylib data
//--------------------------------------------------------------------------------------------------
// Structs info data
structs = (StructInfo *)calloc(MAX_STRUCTS_TO_PARSE, sizeof(StructInfo));
for (int i = 0; i < structCount; i++)
{
char **linesPtr = &lines[structLines[i]];
// Parse struct description
if (linesPtr[-1][0] == '/')
{
MemoryCopy(structs[i].desc, linesPtr[-1], TextLength(linesPtr[-1]));
}
// Get struct name: typedef struct name {
const int TDS_LEN = 15; // length of "typedef struct "
for (int c = TDS_LEN; c < 64 + TDS_LEN; c++)
{
if (linesPtr[0][c] == '{')
{
MemoryCopy(structs[i].name, &linesPtr[0][TDS_LEN], c - TDS_LEN - 1);
break;
}
}
// Get struct fields and count them -> fields finish with ;
int l = 1;
while (linesPtr[l][0] != '}')
{
// WARNING: Some structs have empty spaces and comments -> OK, processed
if ((linesPtr[l][0] != ' ') && (linesPtr[l][0] != '\0'))
{
// Scan one field line
char *fieldLine = linesPtr[l];
int fieldEndPos = 0;
while (fieldLine[fieldEndPos] != ';') fieldEndPos++;
if (fieldLine[0] != '/') // Field line is not a comment
{
//printf("Struct field: %s_\n", fieldLine); // OK!
// Get struct field type and name
GetDataTypeAndName(fieldLine, fieldEndPos, structs[i].fieldType[structs[i].fieldCount], structs[i].fieldName[structs[i].fieldCount]);
// Get the field description
// We start skipping spaces in front of description comment
int descStart = fieldEndPos;
while ((fieldLine[descStart] != '/') && (fieldLine[descStart] != '\0')) descStart++;
int k = 0;
while ((fieldLine[descStart + k] != '\0') && (fieldLine[descStart + k] != '\n'))
{
structs[i].fieldDesc[structs[i].fieldCount][k] = fieldLine[descStart + k];
k++;
}
structs[i].fieldCount++;
}
}
l++;
}
}
free(structLines);
// Enum info data
enums = (EnumInfo *)calloc(MAX_ENUMS_TO_PARSE, sizeof(EnumInfo));
for (int i = 0; i < enumCount; i++)
{
// Parse enum description
// NOTE: This is not necessarily from the line immediately before,
// some of the enums have extra lines between the "description"
// and the typedef enum
for (int j = enumLines[i] - 1; j > 0; j--)
{
char *linePtr = lines[j];
if ((linePtr[0] != '/') || (linePtr[2] != ' '))
{
MemoryCopy(enums[i].desc, &lines[j + 1][0], sizeof(enums[i].desc) - 1);
break;
}
}
for (int j = 1; j < MAX_ENUM_VALUES*2; j++) // Maximum number of lines following enum first line
{
char *linePtr = lines[enumLines[i] + j];
if ((linePtr[0] >= 'A') && (linePtr[0] <= 'Z'))
{
// Parse enum value line, possible options:
//ENUM_VALUE_NAME,
//ENUM_VALUE_NAME
//ENUM_VALUE_NAME = 99
//ENUM_VALUE_NAME = 99,
//ENUM_VALUE_NAME = 0x00000040, // Value description
// We start reading the value name
int c = 0;
while ((linePtr[c] != ',') &&
(linePtr[c] != ' ') &&
(linePtr[c] != '=') &&
(linePtr[c] != '\0')) { enums[i].valueName[enums[i].valueCount][c] = linePtr[c]; c++; }
// After the name we can have:
// '=' -> value is provided
// ',' -> value is equal to previous + 1, there could be a description if not '\0'
// ' ' -> value is equal to previous + 1, there could be a description if not '\0'
// '\0' -> value is equal to previous + 1
// Let's start checking if the line is not finished
if ((linePtr[c] != ',') && (linePtr[c] != '\0'))
{
// Two options:
// '=' -> value is provided
// ' ' -> value is equal to previous + 1, there could be a description if not '\0'
bool foundValue = false;
while ((linePtr[c] != '\0') && (linePtr[c] != '/'))
{
if (linePtr[c] == '=') { foundValue = true; break; }
c++;
}
if (foundValue)
{
if (linePtr[c + 1] == ' ') c += 2;
else c++;
// Parse integer value
int n = 0;
char integer[16] = { 0 };
while ((linePtr[c] != ',') && (linePtr[c] != ' ') && (linePtr[c] != '\0'))
{
integer[n] = linePtr[c];
c++; n++;
}
if (integer[1] == 'x') enums[i].valueInteger[enums[i].valueCount] = (int)strtol(integer, NULL, 16);
else enums[i].valueInteger[enums[i].valueCount] = atoi(integer);
}
else enums[i].valueInteger[enums[i].valueCount] = (enums[i].valueInteger[enums[i].valueCount - 1] + 1);
}
else enums[i].valueInteger[enums[i].valueCount] = (enums[i].valueInteger[enums[i].valueCount - 1] + 1);
// Look for description or end of line
while ((linePtr[c] != '/') && (linePtr[c] != '\0')) { c++; }
if (linePtr[c] == '/')
{
// Parse value description
MemoryCopy(enums[i].valueDesc[enums[i].valueCount], &linePtr[c], sizeof(enums[0].valueDesc[0]) - c - 1);
}
enums[i].valueCount++;
}
else if (linePtr[0] == '}')
{
// Get enum name from typedef
int c = 0;
while (linePtr[2 + c] != ';') { enums[i].name[c] = linePtr[2 + c]; c++; }
break; // Enum ended, break for() loop
}
}
}
free(enumLines);
// Define info data
defines = (DefineInfo *)calloc(MAX_DEFINES_TO_PARSE, sizeof(DefineInfo));
int defineIndex = 0;
for (int i = 0; i < defineCount; i++)
{
char *linePtr = lines[defineLines[i]];
int j = 0;
while (linePtr[j] == ' ' || linePtr[j] == '\t') j++; // Skip spaces and tabs in the begining
j += 8; // Skip "#define "
while (linePtr[j] == ' ' || linePtr[j] == '\t') j++; // Skip spaces and tabs after "#define "
// Extract name
int defineNameStart = j;
while (linePtr[j] != ' ' && linePtr[j] != '\t' && linePtr[j] != '\0') j++;
int defineNameEnd = j-1;
// Skip duplicates
int nameLen = defineNameEnd - defineNameStart + 1;
bool isDuplicate = false;
for (int k = 0; k < defineIndex; k++) {
if (nameLen == TextLength(defines[k].name) && IsTextEqual(defines[k].name, linePtr + defineNameStart, nameLen)) {
isDuplicate = true;
break;
}
}
if (isDuplicate) continue;
MemoryCopy(defines[defineIndex].name, linePtr + defineNameStart, nameLen);
// Determine type
if (linePtr[defineNameEnd] == ')') defines[defineIndex].type = MACRO;
while (linePtr[j] == ' ' || linePtr[j] == '\t') j++; // Skip spaces and tabs after name
int defineValueStart = j;
if (linePtr[j] == '\0' || linePtr == "/") defines[defineIndex].type = GUARD;
if (linePtr[j] == '"') defines[defineIndex].type = STRING;
else if (linePtr[j] == '\'') defines[defineIndex].type = CHAR;
else if (IsTextEqual(linePtr+j, "CLITERAL(Color)", 15)) defines[defineIndex].type = COLOR;
else if (isdigit(linePtr[j])) { // Parsing numbers
bool isFloat = false, isNumber = true, isHex = false;
while (linePtr[j] != ' ' && linePtr[j] != '\t' && linePtr[j] != '\0') {
char ch = linePtr[j];
if (ch == '.') isFloat = true;
if (ch == 'x') isHex = true;
if (!(isdigit(ch)||(ch >= 'a' && ch <= 'f')||(ch >= 'A' && ch <= 'F')||ch=='x'||ch=='L'||ch=='.'||ch=='+'||ch=='-')) isNumber = false;
j++;
}
if (isNumber) {
if (isFloat) {
defines[defineIndex].type = linePtr[j-1] == 'f' ? FLOAT : DOUBLE;
} else {
defines[defineIndex].type = linePtr[j-1] == 'L' ? LONG : INT;
defines[defineIndex].isHex = isHex;
}
}
}
// Extracting value
while (linePtr[j] != '\\' && linePtr[j] != '\0' && !(linePtr[j] == '/' && linePtr[j+1] == '/')) j++;
int defineValueEnd = j-1;
while (linePtr[defineValueEnd] == ' ' || linePtr[defineValueEnd] == '\t') defineValueEnd--; // Remove trailing spaces and tabs
if (defines[defineIndex].type == LONG || defines[defineIndex].type == FLOAT) defineValueEnd--; // Remove number postfix
int valueLen = defineValueEnd - defineValueStart + 1;
if (valueLen > 255) valueLen = 255;
if (valueLen > 0) MemoryCopy(defines[defineIndex].value, linePtr + defineValueStart, valueLen);
// Extracting description
if (linePtr[j] == '/') {
int commentStart = j;
while (linePtr[j] != '\\' && linePtr[j] != '\0') j++;
int commentEnd = j-1;
int commentLen = commentEnd - commentStart + 1;
if (commentLen > 127) commentLen = 127;
MemoryCopy(defines[defineIndex].desc, linePtr + commentStart, commentLen);
}
defineIndex++;
}
defineCount = defineIndex;
free(defineLines);
// Functions info data
funcs = (FunctionInfo *)calloc(MAX_FUNCS_TO_PARSE, sizeof(FunctionInfo));
for (int i = 0; i < funcCount; i++)
{
int funcParamsStart = 0;
int funcEnd = 0;
// Get return type and function name from func line
for (int c = 0; (c < MAX_LINE_LENGTH) && (funcLines[i][c] != '\n'); c++)
{
if (funcLines[i][c] == '(') // Starts function parameters
{
funcParamsStart = c + 1;
// At this point we have function return type and function name
char funcRetTypeName[128] = { 0 };
int dc = TextLength(apiDefine) + 1;
int funcRetTypeNameLen = c - dc; // Substract `define` ("RLAPI " for raylib.h)
MemoryCopy(funcRetTypeName, &funcLines[i][dc], funcRetTypeNameLen);
GetDataTypeAndName(funcRetTypeName, funcRetTypeNameLen, funcs[i].retType, funcs[i].name);
break;
}
}
// Get parameters from func line
for (int c = funcParamsStart; c < MAX_LINE_LENGTH; c++)
{
if (funcLines[i][c] == ',') // Starts function parameters
{
// Get parameter type + name, extract info
char funcParamTypeName[128] = { 0 };
int funcParamTypeNameLen = c - funcParamsStart;
MemoryCopy(funcParamTypeName, &funcLines[i][funcParamsStart], funcParamTypeNameLen);
GetDataTypeAndName(funcParamTypeName, funcParamTypeNameLen, funcs[i].paramType[funcs[i].paramCount], funcs[i].paramName[funcs[i].paramCount]);
funcParamsStart = c + 1;
if (funcLines[i][c + 1] == ' ') funcParamsStart += 1;
funcs[i].paramCount++; // Move to next parameter
}
else if (funcLines[i][c] == ')')
{
funcEnd = c + 2;
// Check if previous word is void
if ((funcLines[i][c - 4] == 'v') && (funcLines[i][c - 3] == 'o') && (funcLines[i][c - 2] == 'i') && (funcLines[i][c - 1] == 'd')) break;
// Get parameter type + name, extract info
char funcParamTypeName[128] = { 0 };
int funcParamTypeNameLen = c - funcParamsStart;
MemoryCopy(funcParamTypeName, &funcLines[i][funcParamsStart], funcParamTypeNameLen);
GetDataTypeAndName(funcParamTypeName, funcParamTypeNameLen, funcs[i].paramType[funcs[i].paramCount], funcs[i].paramName[funcs[i].paramCount]);
funcs[i].paramCount++; // Move to next parameter
break;
}
}
// Get function description
for (int c = funcEnd; c < MAX_LINE_LENGTH; c++)
{
if (funcLines[i][c] == '/')
{
MemoryCopy(funcs[i].desc, &funcLines[i][c], 127); // WARNING: Size could be too long for funcLines[i][c]?
break;
}
}
}
for (int i = 0; i < linesCount; i++) free(lines[i]);
free(lines);
free(funcLines);
// At this point, all raylib data has been parsed!
//-----------------------------------------------------------------------------------------
// structs[] -> We have all the structs decomposed into pieces for further analysis
// enums[] -> We have all the enums decomposed into pieces for further analysis
// funcs[] -> We have all the functions decomposed into pieces for further analysis
// defines[] -> We have all the defines decomposed into pieces for further analysis
// Process input file to output
if (outFileName[0] == '\0') MemoryCopy(outFileName, "raylib_api.txt\0", 15);
printf("\nInput file: %s", inFileName);
printf("\nOutput file: %s", outFileName);
if (outputFormat == DEFAULT) printf("\nOutput format: DEFAULT\n\n");
else if (outputFormat == JSON) printf("\nOutput format: JSON\n\n");
else if (outputFormat == XML) printf("\nOutput format: XML\n\n");
else if (outputFormat == LUA) printf("\nOutput format: LUA\n\n");
ExportParsedData(outFileName, outputFormat);
free(funcs);
free(structs);
free(enums);
}
//----------------------------------------------------------------------------------
// Module Functions Definition
//----------------------------------------------------------------------------------
// Show command line usage info
static void ShowCommandLineInfo(void)
{
printf("\n//////////////////////////////////////////////////////////////////////////////////\n");
printf("// //\n");
printf("// raylib API parser //\n");
printf("// //\n");
printf("// more info and bugs-report: github.com/raysan5/raylib/parser //\n");
printf("// //\n");
printf("// Copyright (c) 2021 Ramon Santamaria (@raysan5) //\n");
printf("// //\n");
printf("//////////////////////////////////////////////////////////////////////////////////\n\n");
printf("USAGE:\n\n");
printf(" > raylib_parser [--help] [--input <filename.h>] [--output <filename.ext>] [--format <type>] [--define <DEF>]\n");
printf("\nOPTIONS:\n\n");
printf(" -h, --help : Show tool version and command line usage help\n\n");
printf(" -i, --input <filename.h> : Define input header file to parse.\n");
printf(" NOTE: If not specified, defaults to: raylib.h\n\n");
printf(" -o, --output <filename.ext> : Define output file and format.\n");
printf(" Supported extensions: .txt, .json, .xml, .h\n");
printf(" NOTE: If not specified, defaults to: raylib_api.txt\n\n");
printf(" -f, --format <type> : Define output format for parser data.\n");
printf(" Supported types: DEFAULT, JSON, XML, LUA\n\n");
printf(" -d, --define <DEF> : Define functions define (i.e. RLAPI for raylib.h, RMDEF for raymath.h, etc\n");
printf(" NOTE: If not specified, defaults to: RLAPI\n\n");
printf("\nEXAMPLES:\n\n");
printf(" > raylib_parser --input raylib.h --output api.json\n");
printf(" Process <raylib.h> to generate <api.json>\n\n");
printf(" > raylib_parser --output raylib_data.info --format XML\n");
printf(" Process <raylib.h> to generate <raylib_data.info> as XML text data\n\n");
printf(" > raylib_parser --input raymath.h --output raymath_data.info --format XML\n");
printf(" Process <raymath.h> to generate <raymath_data.info> as XML text data\n\n");
}
// Process command line arguments
static void ProcessCommandLine(int argc, char *argv[])
{
for (int i = 1; i < argc; i++)
{
if (IsTextEqual(argv[i], "-h", 2) || IsTextEqual(argv[i], "--help", 6))
{
// Show info
ShowCommandLineInfo();
}
else if (IsTextEqual(argv[i], "-i", 2) || IsTextEqual(argv[i], "--input", 7))
{
// Check for valid argument and valid file extension
if (((i + 1) < argc) && (argv[i + 1][0] != '-'))
{
MemoryCopy(inFileName, argv[i + 1], TextLength(argv[i + 1])); // Read input filename
i++;
}
else printf("WARNING: No input file provided\n");
}
else if (IsTextEqual(argv[i], "-o", 2) || IsTextEqual(argv[i], "--output", 8))
{
if (((i + 1) < argc) && (argv[i + 1][0] != '-'))
{
MemoryCopy(outFileName, argv[i + 1], TextLength(argv[i + 1])); // Read output filename
i++;
}
else printf("WARNING: No output file provided\n");
}
else if (IsTextEqual(argv[i], "-f", 2) || IsTextEqual(argv[i], "--format", 8))
{
if (((i + 1) < argc) && (argv[i + 1][0] != '-'))
{
if (IsTextEqual(argv[i + 1], "DEFAULT\0", 8)) outputFormat = DEFAULT;
else if (IsTextEqual(argv[i + 1], "JSON\0", 5)) outputFormat = JSON;
else if (IsTextEqual(argv[i + 1], "XML\0", 4)) outputFormat = XML;
else if (IsTextEqual(argv[i + 1], "LUA\0", 4)) outputFormat = LUA;
}
else printf("WARNING: No format parameters provided\n");
}
else if (IsTextEqual(argv[i], "-d", 2) || IsTextEqual(argv[i], "--define", 8))
{
if (((i + 1) < argc) && (argv[i + 1][0] != '-'))
{
MemoryCopy(apiDefine, argv[i + 1], TextLength(argv[i + 1])); // Read functions define
apiDefine[TextLength(argv[i + 1])] = '\0';
i++;
}
else printf("WARNING: No define key provided\n");
}
}
}
// Load text data from file, returns a '\0' terminated string
// NOTE: text chars array should be freed manually
static char *LoadFileText(const char *fileName, int *length)
{
char *text = NULL;
if (fileName != NULL)
{
FILE *file = fopen(fileName, "rt");
if (file != NULL)
{
// WARNING: When reading a file as 'text' file,
// text mode causes carriage return-linefeed translation...
// ...but using fseek() should return correct byte-offset
fseek(file, 0, SEEK_END);
int size = ftell(file);
fseek(file, 0, SEEK_SET);
if (size > 0)
{
text = (char *)calloc((size + 1), sizeof(char));
unsigned int count = (unsigned int)fread(text, sizeof(char), size, file);
// WARNING: \r\n is converted to \n on reading, so,
// read bytes count gets reduced by the number of lines
if (count < (unsigned int)size)
{
text = realloc(text, count + 1);
*length = count;
}
else *length = size;
// Zero-terminate the string
text[count] = '\0';
}
fclose(file);
}
}
return text;
}
// Get all lines from a text buffer (expecting lines ending with '\n')
static char **GetTextLines(const char *buffer, int length, int *linesCount)
{
// Get the number of lines in the text
int count = 0;
for (int i = 0; i < length; i++) if (buffer[i] == '\n') count++;
printf("Number of text lines in buffer: %i\n", count);
// Allocate as many pointers as lines
char **lines = (char **)malloc(count*sizeof(char **));
char *bufferPtr = (char *)buffer;
for (int i = 0; (i < count) || (bufferPtr[0] != '\0'); i++)
{
lines[i] = (char *)calloc(MAX_LINE_LENGTH, sizeof(char));
// Remove line leading spaces
// Find last index of space/tab character
int index = 0;
while ((bufferPtr[index] == ' ') || (bufferPtr[index] == '\t')) index++;
int j = 0;
while (bufferPtr[index + j] != '\n')
{
lines[i][j] = bufferPtr[index + j];
j++;
}
bufferPtr += (index + j + 1);
}
*linesCount = count;
return lines;
}
// Get data type and name from a string containing both
// NOTE: Useful to parse function parameters and struct fields
static void GetDataTypeAndName(const char *typeName, int typeNameLen, char *type, char *name)
{
for (int k = typeNameLen; k > 0; k--)
{
if (typeName[k] == ' ' && typeName[k - 1] != ',')
{
// Function name starts at this point (and ret type finishes at this point)
MemoryCopy(type, typeName, k);
MemoryCopy(name, typeName + k + 1, typeNameLen - k - 1);
break;
}
else if (typeName[k] == '*')
{
MemoryCopy(type, typeName, k + 1);
MemoryCopy(name, typeName + k + 1, typeNameLen - k - 1);
break;
}
}
}
// Get text length in bytes, check for \0 character
static unsigned int TextLength(const char *text)
{
unsigned int length = 0;
if (text != NULL) while (*text++) length++;
return length;
}
// Custom memcpy() to avoid <string.h>
static void MemoryCopy(void *dest, const void *src, unsigned int count)
{
char *srcPtr = (char *)src;
char *destPtr = (char *)dest;
for (unsigned int i = 0; i < count; i++) destPtr[i] = srcPtr[i];
}
// Compare two text strings, requires number of characters to compare
static bool IsTextEqual(const char *text1, const char *text2, unsigned int count)
{
bool result = true;
for (unsigned int i = 0; i < count; i++)
{
if (text1[i] != text2[i])
{
result = false;
break;
}
}
return result;
}
// Escape backslashes in a string, writing the escaped string into a static buffer
static char *EscapeBackslashes(char *text)
{
static char buffer[256] = { 0 };
int count = 0;
for (int i = 0; (text[i] != '\0') && (i < 255); i++, count++)
{
buffer[count] = text[i];
if (text[i] == '\\')
{
buffer[count + 1] = '\\';
count++;
}
}
buffer[count] = '\0';
return buffer;
}
// Get string of define type
static const char *StrDefineType(DefineType type)
{
switch (type)
{
case UNKNOWN: return "UNKNOWN";
case GUARD: return "GUARD";
case MACRO: return "MACRO";
case INT: return "INT";
case LONG: return "LONG";
case FLOAT: return "FLOAT";
case DOUBLE: return "DOUBLE";
case CHAR: return "CHAR";
case STRING: return "STRING";
case COLOR: return "COLOR";
}
return "";
}
/*
// Replace text string
// REQUIRES: strlen(), strstr(), strncpy(), strcpy() -> TODO: Replace by custom implementations!
// WARNING: Returned buffer must be freed by the user (if return != NULL)
static char *TextReplace(char *text, const char *replace, const char *by)
{
// Sanity checks and initialization
if (!text || !replace || !by) return NULL;
char *result;
char *insertPoint; // Next insert point
char *temp; // Temp pointer
int replaceLen; // Replace string length of (the string to remove)
int byLen; // Replacement length (the string to replace replace by)
int lastReplacePos; // Distance between replace and end of last replace
int count; // Number of replacements
replaceLen = strlen(replace);
if (replaceLen == 0) return NULL; // Empty replace causes infinite loop during count
byLen = strlen(by);
// Count the number of replacements needed
insertPoint = text;
for (count = 0; (temp = strstr(insertPoint, replace)); count++) insertPoint = temp + replaceLen;
// Allocate returning string and point temp to it
temp = result = (char *)malloc(strlen(text) + (byLen - replaceLen)*count + 1);
if (!result) return NULL; // Memory could not be allocated
// First time through the loop, all the variable are set correctly from here on,
// - 'temp' points to the end of the result string
// - 'insertPoint' points to the next occurrence of replace in text
// - 'text' points to the remainder of text after "end of replace"
while (count--)
{
insertPoint = strstr(text, replace);
lastReplacePos = (int)(insertPoint - text);
temp = strncpy(temp, text, lastReplacePos) + lastReplacePos;
temp = strcpy(temp, by) + byLen;
text += lastReplacePos + replaceLen; // Move to next "end of replace"
}
// Copy remaind text part after replacement to result (pointed by moving temp)
strcpy(temp, text);
return result;
}
*/
// Export parsed data in desired format
static void ExportParsedData(const char *fileName, int format)
{
FILE *outFile = fopen(fileName, "wt");
switch (format)
{
case DEFAULT:
{
// Print structs info
fprintf(outFile, "\nStructures found: %i\n\n", structCount);
for (int i = 0; i < structCount; i++)
{
fprintf(outFile, "Struct %02i: %s (%i fields)\n", i + 1, structs[i].name, structs[i].fieldCount);
fprintf(outFile, " Name: %s\n", structs[i].name);
fprintf(outFile, " Description: %s\n", structs[i].desc + 3);
for (int f = 0; f < structs[i].fieldCount; f++) fprintf(outFile, " Field[%i]: %s %s %s\n", f + 1, structs[i].fieldType[f], structs[i].fieldName[f], structs[i].fieldDesc[f]);
}
// Print enums info
fprintf(outFile, "\nEnums found: %i\n\n", enumCount);
for (int i = 0; i < enumCount; i++)
{
fprintf(outFile, "Enum %02i: %s (%i values)\n", i + 1, enums[i].name, enums[i].valueCount);
fprintf(outFile, " Name: %s\n", enums[i].name);
fprintf(outFile, " Description: %s\n", enums[i].desc + 3);
for (int e = 0; e < enums[i].valueCount; e++) fprintf(outFile, " Value[%s]: %i\n", enums[i].valueName[e], enums[i].valueInteger[e]);
}
// Print functions info
fprintf(outFile, "\nFunctions found: %i\n\n", funcCount);
for (int i = 0; i < funcCount; i++)
{
fprintf(outFile, "Function %03i: %s() (%i input parameters)\n", i + 1, funcs[i].name, funcs[i].paramCount);
fprintf(outFile, " Name: %s\n", funcs[i].name);
fprintf(outFile, " Return type: %s\n", funcs[i].retType);
fprintf(outFile, " Description: %s\n", funcs[i].desc + 3);
for (int p = 0; p < funcs[i].paramCount; p++) fprintf(outFile, " Param[%i]: %s (type: %s)\n", p + 1, funcs[i].paramName[p], funcs[i].paramType[p]);
if (funcs[i].paramCount == 0) fprintf(outFile, " No input parameters\n");
}
fprintf(outFile, "\nDefines found: %i\n\n", defineCount);
for (int i = 0; i < defineCount; i++)
{
fprintf(outFile, "Define %03i: %s\n", i + 1, defines[i].name);
fprintf(outFile, " Name: %s\n", defines[i].name);
fprintf(outFile, " Type: %s\n", StrDefineType(defines[i].type));
fprintf(outFile, " Value: %s\n", defines[i].value);
fprintf(outFile, " Description: %s\n", defines[i].desc + 3);
}
} break;
case LUA:
{
fprintf(outFile, "return {\n");
// Print structs info
fprintf(outFile, " structs = {\n");
for (int i = 0; i < structCount; i++)
{
fprintf(outFile, " {\n");
fprintf(outFile, " name = \"%s\",\n", structs[i].name);
fprintf(outFile, " description = \"%s\",\n", EscapeBackslashes(structs[i].desc + 3));
fprintf(outFile, " fields = {\n");
for (int f = 0; f < structs[i].fieldCount; f++)
{
fprintf(outFile, " {\n");
fprintf(outFile, " type = \"%s\",\n", structs[i].fieldType[f]);
fprintf(outFile, " name = \"%s\",\n", structs[i].fieldName[f]);
fprintf(outFile, " description = \"%s\"\n", EscapeBackslashes(structs[i].fieldDesc[f] + 3));
fprintf(outFile, " }");
if (f < structs[i].fieldCount - 1) fprintf(outFile, ",\n");
else fprintf(outFile, "\n");
}
fprintf(outFile, " }\n");
fprintf(outFile, " }");
if (i < structCount - 1) fprintf(outFile, ",\n");
else fprintf(outFile, "\n");
}
fprintf(outFile, " },\n");
// Print enums info
fprintf(outFile, " enums = {\n");
for (int i = 0; i < enumCount; i++)
{
fprintf(outFile, " {\n");
fprintf(outFile, " name = \"%s\",\n", enums[i].name);
fprintf(outFile, " description = \"%s\",\n", EscapeBackslashes(enums[i].desc + 3));
fprintf(outFile, " values = {\n");
for (int e = 0; e < enums[i].valueCount; e++)
{
fprintf(outFile, " {\n");
fprintf(outFile, " name = \"%s\",\n", enums[i].valueName[e]);
fprintf(outFile, " value = %i,\n", enums[i].valueInteger[e]);
fprintf(outFile, " description = \"%s\"\n", EscapeBackslashes(enums[i].valueDesc[e] + 3));
fprintf(outFile, " }");
if (e < enums[i].valueCount - 1) fprintf(outFile, ",\n");
else fprintf(outFile, "\n");
}
fprintf(outFile, " }\n");
fprintf(outFile, " }");
if (i < enumCount - 1) fprintf(outFile, ",\n");
else fprintf(outFile, "\n");
}
fprintf(outFile, " },\n");
// Print defines info
fprintf(outFile, " defines = {\n");
for (int i = 0; i < defineCount; i++)
{
fprintf(outFile, " {\n");
fprintf(outFile, " name = \"%s\",\n", defines[i].name);
fprintf(outFile, " type = \"%s\",\n", StrDefineType(defines[i].type));
if (defines[i].type == INT || defines[i].type == LONG || defines[i].type == FLOAT || defines[i].type == DOUBLE || defines[i].type == STRING) {
fprintf(outFile, " value = %s,\n", defines[i].value);
} else {
fprintf(outFile, " value = \"%s\",\n", defines[i].value);
}
fprintf(outFile, " description = \"%s\"\n", defines[i].desc + 3);
fprintf(outFile, " }");
if (i < defineCount - 1) fprintf(outFile, ",\n");
else fprintf(outFile, "\n");
}
fprintf(outFile, " },\n");
// Print functions info
fprintf(outFile, " functions = {\n");
for (int i = 0; i < funcCount; i++)
{
fprintf(outFile, " {\n");
fprintf(outFile, " name = \"%s\",\n", funcs[i].name);
fprintf(outFile, " description = \"%s\",\n", EscapeBackslashes(funcs[i].desc + 3));
fprintf(outFile, " returnType = \"%s\"", funcs[i].retType);
if (funcs[i].paramCount == 0) fprintf(outFile, "\n");
else
{
fprintf(outFile, ",\n params = {\n");
for (int p = 0; p < funcs[i].paramCount; p++)
{
fprintf(outFile, " {type = \"%s\", name = \"%s\"}", funcs[i].paramType[p], funcs[i].paramName[p]);
if (p < funcs[i].paramCount - 1) fprintf(outFile, ",\n");
else fprintf(outFile, "\n");
}
fprintf(outFile, " }\n");
}
fprintf(outFile, " }");
if (i < funcCount - 1) fprintf(outFile, ",\n");
else fprintf(outFile, "\n");
}
fprintf(outFile, " }\n");
fprintf(outFile, "}\n");
} break;
case JSON:
{
fprintf(outFile, "{\n");
// Print structs info
fprintf(outFile, " \"structs\": [\n");
for (int i = 0; i < structCount; i++)
{
fprintf(outFile, " {\n");
fprintf(outFile, " \"name\": \"%s\",\n", structs[i].name);
fprintf(outFile, " \"description\": \"%s\",\n", EscapeBackslashes(structs[i].desc + 3));
fprintf(outFile, " \"fields\": [\n");
for (int f = 0; f < structs[i].fieldCount; f++)
{
fprintf(outFile, " {\n");
fprintf(outFile, " \"type\": \"%s\",\n", structs[i].fieldType[f]);
fprintf(outFile, " \"name\": \"%s\",\n", structs[i].fieldName[f]);
fprintf(outFile, " \"description\": \"%s\"\n", EscapeBackslashes(structs[i].fieldDesc[f] + 3));
fprintf(outFile, " }");
if (f < structs[i].fieldCount - 1) fprintf(outFile, ",\n");
else fprintf(outFile, "\n");
}
fprintf(outFile, " ]\n");
fprintf(outFile, " }");
if (i < structCount - 1) fprintf(outFile, ",\n");
else fprintf(outFile, "\n");
}
fprintf(outFile, " ],\n");
// Print enums info
fprintf(outFile, " \"enums\": [\n");
for (int i = 0; i < enumCount; i++)
{
fprintf(outFile, " {\n");
fprintf(outFile, " \"name\": \"%s\",\n", enums[i].name);
fprintf(outFile, " \"description\": \"%s\",\n", EscapeBackslashes(enums[i].desc + 3));
fprintf(outFile, " \"values\": [\n");
for (int e = 0; e < enums[i].valueCount; e++)
{
fprintf(outFile, " {\n");
fprintf(outFile, " \"name\": \"%s\",\n", enums[i].valueName[e]);
fprintf(outFile, " \"value\": %i,\n", enums[i].valueInteger[e]);
fprintf(outFile, " \"description\": \"%s\"\n", EscapeBackslashes(enums[i].valueDesc[e] + 3));
fprintf(outFile, " }");
if (e < enums[i].valueCount - 1) fprintf(outFile, ",\n");
else fprintf(outFile, "\n");
}
fprintf(outFile, " ]\n");
fprintf(outFile, " }");
if (i < enumCount - 1) fprintf(outFile, ",\n");
else fprintf(outFile, "\n");
}
fprintf(outFile, " ],\n");
// Print defines info
fprintf(outFile, " \"defines\": [\n");
for (int i = 0; i < defineCount; i++)
{
fprintf(outFile, " {\n");
fprintf(outFile, " \"name\": \"%s\",\n", defines[i].name);
fprintf(outFile, " \"type\": \"%s\",\n", StrDefineType(defines[i].type));
if (defines[i].isHex) { // INT or LONG
fprintf(outFile, " \"value\": %ld,\n", strtol(defines[i].value, NULL, 16));
} else if (defines[i].type == INT || defines[i].type == LONG || defines[i].type == FLOAT || defines[i].type == DOUBLE || defines[i].type == STRING) {
fprintf(outFile, " \"value\": %s,\n", defines[i].value);
} else {
fprintf(outFile, " \"value\": \"%s\",\n", defines[i].value);
}
fprintf(outFile, " \"description\": \"%s\"\n", defines[i].desc + 3);
fprintf(outFile, " }");
if (i < defineCount - 1) fprintf(outFile, ",\n");
else fprintf(outFile, "\n");
}
fprintf(outFile, " ],\n");
// Print functions info
fprintf(outFile, " \"functions\": [\n");
for (int i = 0; i < funcCount; i++)
{
fprintf(outFile, " {\n");
fprintf(outFile, " \"name\": \"%s\",\n", funcs[i].name);
fprintf(outFile, " \"description\": \"%s\",\n", EscapeBackslashes(funcs[i].desc + 3));
fprintf(outFile, " \"returnType\": \"%s\"", funcs[i].retType);
if (funcs[i].paramCount == 0) fprintf(outFile, "\n");
else
{
fprintf(outFile, ",\n \"params\": [\n");
for (int p = 0; p < funcs[i].paramCount; p++)
{
fprintf(outFile, " {\n");
fprintf(outFile, " \"type\": \"%s\",\n", funcs[i].paramType[p]);
fprintf(outFile, " \"name\": \"%s\"\n", funcs[i].paramName[p]);
fprintf(outFile, " }");
if (p < funcs[i].paramCount - 1) fprintf(outFile, ",\n");
else fprintf(outFile, "\n");
}
fprintf(outFile, " ]\n");
}
fprintf(outFile, " }");
if (i < funcCount - 1) fprintf(outFile, ",\n");
else fprintf(outFile, "\n");
}
fprintf(outFile, " ]\n");
fprintf(outFile, "}\n");
} break;
case XML:
{
// XML format to export data:
/*
<?xml version="1.0" encoding="Windows-1252" ?>
<raylibAPI>
<Structs count="">
<Struct name="" fieldCount="" desc="">
<Field type="" name="" desc="">
<Field type="" name="" desc="">
</Struct>
<Structs>
<Enums count="">
<Enum name="" valueCount="" desc="">
<Value name="" integer="" desc="">
<Value name="" integer="" desc="">
</Enum>
</Enums>
<Functions count="">
<Function name="" retType="" paramCount="" desc="">
<Param type="" name="" desc="" />
<Param type="" name="" desc="" />
</Function>
</Functions>
</raylibAPI>
*/
fprintf(outFile, "<?xml version=\"1.0\" encoding=\"Windows-1252\" ?>\n");
fprintf(outFile, "<raylibAPI>\n");
// Print structs info
fprintf(outFile, " <Structs count=\"%i\">\n", structCount);
for (int i = 0; i < structCount; i++)
{
fprintf(outFile, " <Struct name=\"%s\" fieldCount=\"%i\" desc=\"%s\">\n", structs[i].name, structs[i].fieldCount, structs[i].desc + 3);
for (int f = 0; f < structs[i].fieldCount; f++)
{
fprintf(outFile, " <Field type=\"%s\" name=\"%s\" desc=\"%s\" />\n", structs[i].fieldType[f], structs[i].fieldName[f], structs[i].fieldDesc[f] + 3);
}
fprintf(outFile, " </Struct>\n");
}
fprintf(outFile, " </Structs>\n");
// Print enums info
fprintf(outFile, " <Enums count=\"%i\">\n", enumCount);
for (int i = 0; i < enumCount; i++)
{
fprintf(outFile, " <Enum name=\"%s\" valueCount=\"%i\" desc=\"%s\">\n", enums[i].name, enums[i].valueCount, enums[i].desc + 3);
for (int v = 0; v < enums[i].valueCount; v++)
{
fprintf(outFile, " <Value name=\"%s\" integer=\"%i\" desc=\"%s\" />\n", enums[i].valueName[v], enums[i].valueInteger[v], enums[i].valueDesc[v] + 3);
}
fprintf(outFile, " </Enum>\n");
}
fprintf(outFile, " </Enums>\n");
// Print defines info
fprintf(outFile, " <Defines count=\"%i\">\n", defineCount);
for (int i = 0; i < defineCount; i++)
{
fprintf(outFile, " <Define name=\"%s\" type=\"%s\" value=\"%s\" desc=\"%s\" />\n", defines[i].name, StrDefineType(defines[i].type), defines[i].value, defines[i].desc);
}
fprintf(outFile, " </Defines>\n");
// Print functions info
fprintf(outFile, " <Functions count=\"%i\">\n", funcCount);
for (int i = 0; i < funcCount; i++)
{
fprintf(outFile, " <Function name=\"%s\" retType=\"%s\" paramCount=\"%i\" desc=\"%s\">\n", funcs[i].name, funcs[i].retType, funcs[i].paramCount, funcs[i].desc + 3);
for (int p = 0; p < funcs[i].paramCount; p++)
{
fprintf(outFile, " <Param type=\"%s\" name=\"%s\" desc=\"%s\" />\n", funcs[i].paramType[p], funcs[i].paramName[p], funcs[i].paramDesc[p] + 3);
}
fprintf(outFile, " </Function>\n");
}
fprintf(outFile, " </Functions>\n");
fprintf(outFile, "</raylibAPI>\n");
} break;
default: break;
}
fclose(outFile);
}
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