Add a lot more logs to regex

What the fuck is going on?
This commit is contained in:
2025-03-26 03:30:08 +01:00
parent 0d7d251e76
commit 2c7a4f5d97

View File

@@ -2,6 +2,7 @@ package processor
import ( import (
"fmt" "fmt"
"log"
"regexp" "regexp"
"strconv" "strconv"
"strings" "strings"
@@ -70,22 +71,27 @@ func (p *RegexProcessor) ProcessContent(content string, pattern string, luaExpr
// Handle special pattern modifications // Handle special pattern modifications
if !strings.HasPrefix(pattern, "(?s)") { if !strings.HasPrefix(pattern, "(?s)") {
pattern = "(?s)" + pattern pattern = "(?s)" + pattern
log.Printf("Pattern modified to include (?s): %s", pattern)
} }
compiledPattern, err := regexp.Compile(pattern) compiledPattern, err := regexp.Compile(pattern)
if err != nil { if err != nil {
log.Printf("Error compiling pattern: %v", err)
return "", 0, 0, fmt.Errorf("error compiling pattern: %v", err) return "", 0, 0, fmt.Errorf("error compiling pattern: %v", err)
} }
log.Printf("Compiled pattern successfully: %s", pattern)
previous := luaExpr previous := luaExpr
luaExpr = BuildLuaScript(luaExpr) luaExpr = BuildLuaScript(luaExpr)
fmt.Printf("Changing Lua expression from: %s to: %s\n", previous, luaExpr) log.Printf("Changing Lua expression from: %s to: %s", previous, luaExpr)
L, err := NewLuaState() L, err := NewLuaState()
if err != nil { if err != nil {
log.Printf("Error creating Lua state: %v", err)
return "", 0, 0, fmt.Errorf("error creating Lua state: %v", err) return "", 0, 0, fmt.Errorf("error creating Lua state: %v", err)
} }
defer L.Close() defer L.Close()
log.Printf("Lua state created successfully")
// Initialize Lua environment // Initialize Lua environment
modificationCount := 0 modificationCount := 0
@@ -93,12 +99,16 @@ func (p *RegexProcessor) ProcessContent(content string, pattern string, luaExpr
// Process all regex matches // Process all regex matches
result := content result := content
indices := compiledPattern.FindAllStringSubmatchIndex(content, -1) indices := compiledPattern.FindAllStringSubmatchIndex(content, -1)
log.Printf("Found %d matches in the content", len(indices))
// We walk backwards because we're replacing something with something else that might be longer // We walk backwards because we're replacing something with something else that might be longer
// And in the case it is longer than the original all indicces past that change will be fucked up // And in the case it is longer than the original all indicces past that change will be fucked up
// By going backwards we fuck up all the indices to the end of the file that we don't care about // By going backwards we fuck up all the indices to the end of the file that we don't care about
// Because there either aren't any (last match) or they're already modified (subsequent matches) // Because there either aren't any (last match) or they're already modified (subsequent matches)
for i := len(indices) - 1; i >= 0; i-- { for i := len(indices) - 1; i >= 0; i-- {
matchIndices := indices[i] matchIndices := indices[i]
log.Printf("Processing match indices: %v", matchIndices)
// Why we're doing this whole song and dance of indices is to properly handle empty matches // Why we're doing this whole song and dance of indices is to properly handle empty matches
// Plus it's a little cleaner to surgically replace our matches // Plus it's a little cleaner to surgically replace our matches
// If we were to use string.replace and encountered an empty match there'd be nothing to replace // If we were to use string.replace and encountered an empty match there'd be nothing to replace
@@ -107,14 +117,15 @@ func (p *RegexProcessor) ProcessContent(content string, pattern string, luaExpr
// As if concatenating in the middle of the array // As if concatenating in the middle of the array
// Plus it supports lookarounds // Plus it supports lookarounds
match := content[matchIndices[0]:matchIndices[1]] match := content[matchIndices[0]:matchIndices[1]]
log.Printf("Matched content: %s", match)
groups := matchIndices[2:] groups := matchIndices[2:]
if len(groups) <= 0 { if len(groups) <= 0 {
fmt.Println("No capture groups for lua to chew on") log.Println("No capture groups for lua to chew on")
continue continue
} }
if len(groups)%2 == 1 { if len(groups)%2 == 1 {
fmt.Println("Odd number of indices of groups, what the fuck?") log.Println("Odd number of indices of groups, what the fuck?")
continue continue
} }
@@ -122,28 +133,31 @@ func (p *RegexProcessor) ProcessContent(content string, pattern string, luaExpr
for j := 0; j < len(groups); j += 2 { for j := 0; j < len(groups); j += 2 {
captures = append(captures, content[groups[j]:groups[j+1]]) captures = append(captures, content[groups[j]:groups[j+1]])
} }
log.Printf("Captured groups: %v", captures)
if err := p.ToLua(L, captures); err != nil { if err := p.ToLua(L, captures); err != nil {
fmt.Println("Error setting Lua variables:", err) log.Printf("Error setting Lua variables: %v", err)
continue continue
} }
log.Println("Lua variables set successfully")
if err := L.DoString(luaExpr); err != nil { if err := L.DoString(luaExpr); err != nil {
fmt.Printf("Error executing Lua code %s for group %s: %v", luaExpr, captures, err) log.Printf("Error executing Lua code %s for group %s: %v", luaExpr, captures, err)
continue continue
} }
log.Println("Lua code executed successfully")
// Get modifications from Lua // Get modifications from Lua
modResult, err := p.FromLua(L) modResult, err := p.FromLua(L)
if err != nil { if err != nil {
fmt.Println("Error getting modifications:", err) log.Printf("Error getting modifications: %v", err)
continue continue
} }
// Apply modifications to the matched text // Apply modifications to the matched text
modsMap, ok := modResult.(map[int]string) modsMap, ok := modResult.(map[int]string)
if !ok || len(modsMap) == 0 { if !ok || len(modsMap) == 0 {
fmt.Println("No modifications to apply") log.Println("No modifications to apply")
continue continue
} }
@@ -151,6 +165,7 @@ func (p *RegexProcessor) ProcessContent(content string, pattern string, luaExpr
replacement := match replacement := match
for i := len(modsMap) - 1; i >= 0; i-- { for i := len(modsMap) - 1; i >= 0; i-- {
newVal := modsMap[i] newVal := modsMap[i]
log.Printf("Applying modification: %s", newVal)
// Indices of the group are relative to content // Indices of the group are relative to content
// To relate them to match we have to subtract the match start index // To relate them to match we have to subtract the match start index
groupStart := groups[i*2] - matchIndices[0] groupStart := groups[i*2] - matchIndices[0]
@@ -160,7 +175,9 @@ func (p *RegexProcessor) ProcessContent(content string, pattern string, luaExpr
modificationCount++ modificationCount++
result = result[:matchIndices[0]] + replacement + result[matchIndices[1]:] result = result[:matchIndices[0]] + replacement + result[matchIndices[1]:]
log.Printf("Modification count updated: %d", modificationCount)
} }
log.Printf("Process completed with %d modifications", modificationCount)
return result, modificationCount, len(indices), nil return result, modificationCount, len(indices), nil
} }