93 lines
1.8 KiB
C++
93 lines
1.8 KiB
C++
// 21 may 2018
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#include <vector>
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#include <stdio.h>
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#include "lib.hpp"
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bool generate(const char *line, size_t n, FILE *fout)
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{
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std::vector<char> genout;
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std::vector<Slice *> *tokens;
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std::vector<Slice *>::const_iterator i;
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size_t nw;
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tokens = TokenizeWhitespace(line, n);
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for (i = tokens->begin(); i < tokens->end(); i++) {
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genout.push_back('/');
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genout.push_back('/');
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genout.push_back(' ');
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AppendSlice(&genout, *i);
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genout.push_back('\n');
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}
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FreeTokenized(tokens);
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genout.push_back('\n');
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nw = fwrite(genout.data(), sizeof (char), genout.size(), fout);
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return nw == genout.size();
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}
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bool process(const char *line, size_t n, FILE *fout)
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{
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size_t nw;
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if (n > 0 && line[0] == '@')
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return generate(line + 1, n - 1, fout);
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nw = fwrite(line, sizeof (char), n, fout);
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if (nw != n)
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return false;
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return fwrite("\n", sizeof (char), 1, fout) == 1;
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}
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int main(int argc, char *argv[])
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{
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ReadCloser *fin = NULL;
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FILE *fout = NULL;
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Scanner *s = NULL;
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int ret = 1;
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Error *err = NULL;
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if (argc != 3) {
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fprintf(stderr, "usage: %s infile outfile\n", argv[0]);
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return 1;
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}
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err = OpenRead(argv[1], &fin);
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if (err != NULL) {
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fprintf(stderr, "error opening %s: %s\n", argv[1], err->String());
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goto done;
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}
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fout = fopen(argv[2], "wb");
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if (fout == NULL) {
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fprintf(stderr, "error creating %s\n", argv[2]);
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goto done;
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}
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s = new Scanner(fin);
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while (s->Scan()) {
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const char *line;
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size_t n;
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line = s->Bytes();
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n = s->Len();
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if (!process(line, n, fout)) {
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fprintf(stderr, "error writing to %s\n", argv[2]);
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goto done;
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}
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}
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if (s->Err() != 0) {
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fprintf(stderr, "error reading from %s: %s\n", argv[1], s->Err()->String());
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goto done;
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}
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ret = 0;
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done:
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if (s != NULL)
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delete s;
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if (fout != NULL)
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fclose(fout);
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if (fin != NULL)
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delete fin;
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if (err != NULL)
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delete err;
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return ret;
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}
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