Word Unperfect - XT-Emporium

File editor

#ifndef WP_PARSER_CLASSIFY_H
#define WP_PARSER_CLASSIFY_H

#include "wp_file_format.h"
#include "wp_layout_shared.h"
#include "wp_record_parser.h"
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>

/* Host-safe port of parser_classify_or_handle_token @ 1000:2447.
 *
 * The original routine is a branch-heavy parser/backtracking helper that
 * prepends the current token, adjusts cursor/span counters, routes low-control
 * and format tokens through layout-state side effects, and jumps to several
 * near-code labels (0x79FA, 0x7B6F, 0x7B91).  This module preserves the
 * observable classification and state effects without jumping through raw
 * decompiler addresses. */

typedef enum WpParserClassifyRoute {
    WP_PARSER_CLASSIFY_ROUTE_NONE = 0,
    WP_PARSER_CLASSIFY_ROUTE_SPACE_BACKTRACK,
    WP_PARSER_CLASSIFY_ROUTE_PRINTABLE_BACKTRACK,
    WP_PARSER_CLASSIFY_ROUTE_C0_EXTENDED_REPLAY,
    WP_PARSER_CLASSIFY_ROUTE_LOW_CONTROL_RESTORE,
    WP_PARSER_CLASSIFY_ROUTE_SINGLE_BYTE_CONTROL,
    WP_PARSER_CLASSIFY_ROUTE_FIXED_PACKET,
    WP_PARSER_CLASSIFY_ROUTE_VARIABLE_PACKET,
    WP_PARSER_CLASSIFY_ROUTE_DE_SCANNER_BYPASS,
    WP_PARSER_CLASSIFY_ROUTE_RANGE_CHECK_FALLBACK
} WpParserClassifyRoute;

typedef enum WpParserClassifyHandler {
    WP_PARSER_CLASSIFY_HANDLER_NONE = 0,
    WP_PARSER_CLASSIFY_HANDLER_79FA_TEXT_SINGLE = 0x79FA,
    WP_PARSER_CLASSIFY_HANDLER_7B6F_FIXED = 0x7B6F,
    WP_PARSER_CLASSIFY_HANDLER_7B91_VARIABLE = 0x7B91
} WpParserClassifyHandler;

typedef struct WpParserClassifyStep {
    uint8_t code;
    uint8_t sub_code;
    WpCodeType record_type;
    WpParserClassifyRoute route;
    WpParserClassifyHandler handler;

    bool prepends_token;
    bool decrements_update_depth;
    bool decrements_processed_segments;
    bool clears_emit_bit1;
    bool cursor_decrement_stage1;
    bool cursor_decrement_stage2;
    bool c0_word_replay;

    bool parse_depth_pulse;
    bool runtime_bit0_set;
    bool state_update_gate_blocked_decrement;
    bool cursor_window_reset;
    bool low_control_restore_path;
    bool runtime_bit2_set;
    bool state_flags_cleared;
    bool status_extend_update;
    bool sub_metric_update;
    bool render_dirty_set;

    bool variant_balance_check;
    bool normalize_below_d0;
    bool reverse_transfer_hint;
    bool overlay_consume_hint;
    bool range_check;
    bool de_scanner_bypass;
    bool emit_flags_clear_0x14;
    bool record_wide_temp_snapshot;
    bool runtime_mismatch_dirty_possible;

    uint16_t consumed_record_bytes;
    uint16_t c0_payload_word;
} WpParserClassifyStep;

typedef struct WpParserClassifyStats {
    size_t records_seen;
    size_t bytes_consumed;
    size_t space_backtracks;
    size_t printable_backtracks;
    size_t c0_extended_replays;
    size_t c0_replayed_words;
    size_t deep_classifications;
    size_t low_control_restores;
    size_t single_byte_controls;
    size_t fixed_packets;
    size_t variable_packets;
    size_t de_scanner_bypass_packets;
    size_t range_check_fallbacks;

    size_t prepended_tokens;
    size_t update_depth_decrements;
    size_t processed_segment_decrements;
    size_t emit_bit1_clears;
    size_t cursor_stage1_decrements;
    size_t cursor_stage2_decrements;
    size_t parse_depth_pulses;
    size_t runtime_bit0_sets;
    size_t runtime_bit2_sets;
    size_t cursor_window_resets;
    size_t state_flags_clears;
    size_t status_extend_updates;
    size_t sub_metric_updates;
    size_t render_dirty_sets;
    size_t variant_balance_checks;
    size_t normalize_below_d0_calls;
    size_t reverse_transfer_hints;
    size_t overlay_consume_hints;
    size_t range_checks;
    size_t emit_flags_clear_0x14;
    size_t record_wide_temp_snapshots;
    size_t runtime_mismatch_dirty_hints;

    size_t handler_79fa_text_single;
    size_t handler_7b6f_fixed;
    size_t handler_7b91_variable;

    size_t incomplete_records;
    size_t mismatched_trailers;

    uint8_t final_runtime_flags;
    uint8_t final_emit_flags;
    uint8_t final_parse_depth_counter;
    int final_update_depth;
    int final_processed_segments;
    uint16_t final_cursor;
    uint16_t final_cursor_window;
    uint16_t final_span_aux;
    int final_record_aux;
    uint8_t final_state_flags;
    uint8_t final_render_dirty_flags;
} WpParserClassifyStats;

void wp_parser_classify_stats_clear(WpParserClassifyStats *stats);
const char *wp_parser_classify_route_name(WpParserClassifyRoute route);
const char *wp_parser_classify_handler_name(WpParserClassifyHandler handler);

bool wp_parser_classify_plan_record(const WpLayoutGlobals *runtime,
                                    const WpRecord *rec,
                                    WpParserClassifyStep *out_step);
void wp_parser_classify_apply_step(WpLayoutGlobals *runtime,
                                   const WpParserClassifyStep *step,
                                   WpParserClassifyStats *stats);
bool wp_parser_classify_apply_record(WpLayoutGlobals *runtime,
                                     const WpRecord *rec,
                                     WpParserClassifyStats *stats);
bool wp_parser_classify_run_stream(WpLayoutGlobals *wl, WpParserClassifyStats *stats);
bool wp_parser_classify_run_loaded_file(WpLoadedFile *file, WpParserClassifyStats *stats);
bool wp_parser_classify_run_file(const char *filename, WpParserClassifyStats *stats);

#endif
Commit message
This repository is read-only for this account.
Repository snapshot

Current branch
main
Visibility
public
Your access
Read
Remote
None
File activity

View file history