144 lines
4.5 KiB
C
144 lines
4.5 KiB
C
#if !defined(DQN_CPP_FILE_H)
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#define DQN_CPP_FILE_H
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#include <stdio.h>
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#include <stdarg.h>
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// -----------------------------------------------------------------------------
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// NOTE: Dqn_CppFile: Helper functions to generate formatted CPP files
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// -----------------------------------------------------------------------------
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#define DQN_CPPF_ASSERT(expr) do { if (!(expr)) { *((int *)0) = 0; } } while (0)
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struct Dqn_CppFile
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{
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FILE *file;
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int indent;
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int space_per_indent;
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bool append_extra_new_line;
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};
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int Dqn_CppFile_SpacePerIndent(Dqn_CppFile *cpp);
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void Dqn_CppFile_LineBeginV (Dqn_CppFile *cpp, char const *fmt, va_list args);
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void Dqn_CppFile_LineBegin (Dqn_CppFile *cpp, char const *fmt, ...);
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void Dqn_CppFile_LineEnd (Dqn_CppFile *cpp, char const *fmt, ...);
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void Dqn_CppFile_LineAdd (Dqn_CppFile *cpp, char const *fmt, ...);
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void Dqn_CppFile_LineV (Dqn_CppFile *cpp, char const *fmt, va_list args);
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void Dqn_CppFile_Line (Dqn_CppFile *cpp, char const *fmt, ...);
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void Dqn_CppFile_NewLine (Dqn_CppFile *cpp);
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void Dqn_CppFile_Indent (Dqn_CppFile *cpp);
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void Dqn_CppFile_Unindent (Dqn_CppFile *cpp);
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// fmt: (Optional) The format string to print at the beginning of the block.
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// When the fmt string is given, it will place a new-line at the end of the fmt
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// string. When fmt is nullptr, no new line will be appended.
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void Dqn_CppFile_BeginBlock (Dqn_CppFile *cpp, char const *fmt, ...);
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void Dqn_CppFile_EndBlock (Dqn_CppFile *cpp, bool trailing_semicolon, bool new_line_on_next_block);
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#define Dqn_CppFile_EndEnumBlock(cpp) Dqn_CppFile_EndBlock(cpp, true /*trailing_semicolon*/, true /*new_line_on_next_block*/)
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#define Dqn_CppFile_EndForBlock(cpp) Dqn_CppFile_EndBlock(cpp, false /*trailing_semicolon*/, false /*new_line_on_next_block*/)
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#define Dqn_CppFile_EndIfBlock(cpp) Dqn_CppFile_EndBlock(cpp, false /*trailing_semicolon*/, false /*new_line_on_next_block*/)
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#define Dqn_CppFile_EndFuncBlock(cpp) Dqn_CppFile_EndBlock(cpp, false /*trailing_semicolon*/, true /*new_line_on_next_block*/)
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#define Dqn_CppFile_EndStructBlock(cpp) Dqn_CppFile_EndBlock(cpp, true /*trailing_semicolon*/, true /*new_line_on_next_block*/)
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#endif // DQN_CPP_FILE_H
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#if defined(DQN_CPP_FILE_IMPLEMENTATION)
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// -----------------------------------------------------------------------------
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// NOTE: Dqn_CppFile Implementation
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// -----------------------------------------------------------------------------
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int Dqn_CppFile_SpacePerIndent(Dqn_CppFile *cpp)
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{
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int result = cpp->space_per_indent == 0 ? 4 : cpp->space_per_indent;
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return result;
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}
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void Dqn_CppFile_LineBeginV(Dqn_CppFile *cpp, char const *fmt, va_list args)
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{
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int spaces = cpp->indent * Dqn_CppFile_SpacePerIndent(cpp);
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fprintf(cpp->file, "%*s", spaces, "");
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vfprintf(cpp->file, fmt, args);
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}
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void Dqn_CppFile_LineBegin(Dqn_CppFile *cpp, char const *fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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Dqn_CppFile_LineBeginV(cpp, fmt, args);
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va_end(args);
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}
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void Dqn_CppFile_LineEnd(Dqn_CppFile *cpp, char const *fmt, ...)
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{
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if (fmt)
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{
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va_list args;
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va_start(args, fmt);
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vfprintf(cpp->file, fmt, args);
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va_end(args);
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}
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fputc('\n', cpp->file);
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}
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void Dqn_CppFile_LineAdd(Dqn_CppFile *cpp, char const *fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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vfprintf(cpp->file, fmt, args);
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va_end(args);
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}
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void Dqn_CppFile_LineV(Dqn_CppFile *cpp, char const *fmt, va_list args)
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{
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Dqn_CppFile_LineBeginV(cpp, fmt, args);
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Dqn_CppFile_LineEnd(cpp, nullptr);
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}
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void Dqn_CppFile_Line(Dqn_CppFile *cpp, char const *fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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Dqn_CppFile_LineBeginV(cpp, fmt, args);
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Dqn_CppFile_LineEnd(cpp, nullptr);
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va_end(args);
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}
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void Dqn_CppFile_NewLine(Dqn_CppFile *cpp)
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{
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fputc('\n', cpp->file);
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}
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void Dqn_CppFile_Indent(Dqn_CppFile *cpp)
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{
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cpp->indent++;
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}
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void Dqn_CppFile_Unindent(Dqn_CppFile *cpp)
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{
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cpp->indent--;
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DQN_CPPF_ASSERT(cpp->indent >= 0);
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}
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void Dqn_CppFile_BeginBlock(Dqn_CppFile *cpp, char const *fmt, ...)
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{
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if (fmt)
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{
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va_list args;
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va_start(args, fmt);
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Dqn_CppFile_LineV(cpp, fmt, args);
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va_end(args);
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}
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Dqn_CppFile_Line(cpp, "{");
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Dqn_CppFile_Indent(cpp);
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}
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void Dqn_CppFile_EndBlock(Dqn_CppFile *cpp, bool trailing_semicolon, bool new_line_on_next_block)
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{
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Dqn_CppFile_Unindent(cpp);
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Dqn_CppFile_Line(cpp, trailing_semicolon ? "};" : "}");
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if (new_line_on_next_block) fputc('\n', cpp->file);
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}
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#endif // DQN_CPP_FILE_IMPLEMENTATION
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