3cceba7abb
No need to waste startup time building something that can be done at compile time. This also resolves a clang++ warning originally reported in #4714, univalue/univalue_write.cpp:33:12: warning: array subscript is of type 'char escapes['"'] = "\\""; ^~~~ etc.
79 lines
1.5 KiB
C++
79 lines
1.5 KiB
C++
// Copyright 2014 BitPay Inc.
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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//
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// To re-create univalue_escapes.h:
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// $ g++ -o gen gen.cpp
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// $ ./gen > univalue_escapes.h
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//
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#include <ctype.h>
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#include <stdio.h>
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#include <string.h>
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#include "univalue.h"
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using namespace std;
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static bool initEscapes;
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static const char *escapes[256];
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static void initJsonEscape()
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{
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escapes[(int)'"'] = "\\\"";
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escapes[(int)'\\'] = "\\\\";
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escapes[(int)'/'] = "\\/";
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escapes[(int)'\b'] = "\\b";
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escapes[(int)'\f'] = "\\f";
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escapes[(int)'\n'] = "\\n";
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escapes[(int)'\r'] = "\\r";
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escapes[(int)'\t'] = "\\t";
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initEscapes = true;
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}
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static void outputEscape()
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{
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printf( "// Automatically generated file. Do not modify.\n"
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"#ifndef __UNIVALUE_ESCAPES_H__\n"
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"#define __UNIVALUE_ESCAPES_H__\n"
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"static const char *escapes[256] = {\n");
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for (unsigned int i = 0; i < 256; i++) {
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if (!escapes[i]) {
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printf("\tNULL,\n");
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} else {
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printf("\t\"");
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unsigned int si;
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for (si = 0; si < strlen(escapes[i]); si++) {
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char ch = escapes[i][si];
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switch (ch) {
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case '"':
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printf("\\\"");
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break;
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case '\\':
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printf("\\\\");
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break;
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default:
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printf("%c", escapes[i][si]);
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break;
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}
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}
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printf("\",\n");
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}
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}
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printf( "};\n"
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"#endif // __UNIVALUE_ESCAPES_H__\n");
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}
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int main (int argc, char *argv[])
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{
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initJsonEscape();
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outputEscape();
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return 0;
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}
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