46 lines
948 B
C
46 lines
948 B
C
#include "global.h"
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/* Possibly rename */
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struct FILE;
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/* Page cursor stack */
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static FILE **hto_page = &refsfound;
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#define PCS_MAXPAGE 16
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static size_t PCS_pos[PCS_MAXPAGE] = {0};
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static size_t PCS_top = 0;
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long seekpage(const size_t i) {
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if(i > PCS_MAXPAGE - 1) { return -1; }
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if(i < PCS_top) {
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fseek(*hto_page, PCS_pos[i], SEEK_SET);
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return PCS_pos[i];
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}
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fseek(*hto_page, PCS_pos[PCS_top], SEEK_SET);
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size_t lc = 0;
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while(PCS_top < i) {
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const char c = getc(*hto_page);
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if(c == '\n') { ++lc; }
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if(c == EOF) { return -1; }
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if(lc == mdisprefs) { PCS_pos[++PCS_top] = ftell(*hto_page); }
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}
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return PCS_pos[PCS_top];
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}
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long seekrelline(unsigned i) {
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seekpage(current_page);
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size_t lc = 0;
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while(lc < i) {
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const char c = getc(*hto_page);
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assert("seekrelline() tried to read past the reference file" && !(c == EOF));
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if(c == '\n') { ++lc; }
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}
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return ftell(*hto_page);
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}
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void PCS_reset(void) {
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PCS_top = 0;
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}
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