Add tests and refactor config

2026-05-20 08:30:21 +02:00
parent 8b760b2897
commit cd9550ee8a
13 changed files with 1070 additions and 558 deletions
--- a/awk/reference_links.awk
+++ b/awk/reference_links.awk
@@ -0,0 +1,119 @@
+{
+    lines[NR] = $0
+    total = NR
+
+    if (/^\[[^\]]+\]:  */) {
+        line = $0
+        sub(/^\[/, "", line)
+        ref_id = line
+        sub(/\].*/, "", ref_id)
+
+        line = $0
+        sub(/^\[[^\]]+\]:  */, "", line)
+        ref_url = line
+        sub(/[ \t].*/, "", ref_url)
+
+        ref_title = $0
+        sub(/^\[[^\]]+\]:  *[^\t ]*[ \t]*/, "", ref_title)
+        sub(/^"/, "", ref_title)
+        sub(/"$/, "", ref_title)
+        gsub(/\|/, "!", ref_title)
+
+        refs[ref_id] = ref_url
+        if (ref_title != "") titles[ref_id] = ref_title
+        is_ref[NR] = 1
+    }
+}
+
+function resolve_image_ref(alt, id,    url, title) {
+    url = refs[id]
+    title = (id in titles) ? titles[id] : ""
+    if (url == "") return "![" alt "][" id "]"
+    return "<img src=\"" url "\" title=\"" title "\" alt=\"" alt "\" />"
+}
+
+function resolve_link_ref(text, id,    url, title) {
+    url = refs[id]
+    title = (id in titles) ? titles[id] : ""
+    if (url == "") return "[" text "][" id "]"
+    return "<a href=\"" url "\" title=\"" title "\">" text "</a>"
+}
+
+function process_refs(line,    result, i, len, ch, j, k, depth, bracket_content, ref_id) {
+    result = ""
+    len = length(line)
+    i = 1
+
+    while (i <= len) {
+        ch = substr(line, i, 1)
+
+        if (ch == "!" && i < len && substr(line, i + 1, 1) == "[") {
+            bracket_content = ""
+            j = i + 2
+            while (j <= len && substr(line, j, 1) != "]") {
+                bracket_content = bracket_content substr(line, j, 1)
+                j++
+            }
+            if (j <= len && j < len && substr(line, j + 1, 1) == "[") {
+                k = j + 2
+                ref_id = ""
+                while (k <= len && substr(line, k, 1) != "]") {
+                    ref_id = ref_id substr(line, k, 1)
+                    k++
+                }
+                if (k <= len) {
+                    if (ref_id == "") ref_id = bracket_content
+                    if (ref_id in refs) {
+                        result = result resolve_image_ref(bracket_content, ref_id)
+                        i = k + 1
+                        continue
+                    }
+                }
+            }
+            result = result substr(line, i, 1)
+            i++
+        } else if (ch == "[") {
+            bracket_content = ""
+            j = i + 1
+            depth = 1
+            while (j <= len && depth > 0) {
+                if (substr(line, j, 1) == "[") depth++
+                if (substr(line, j, 1) == "]") {
+                    depth--
+                    if (depth == 0) break
+                }
+                if (depth > 0) bracket_content = bracket_content substr(line, j, 1)
+                j++
+            }
+            if (j <= len && j < len && substr(line, j + 1, 1) == "[") {
+                k = j + 2
+                ref_id = ""
+                while (k <= len && substr(line, k, 1) != "]") {
+                    ref_id = ref_id substr(line, k, 1)
+                    k++
+                }
+                if (k <= len) {
+                    if (ref_id == "") ref_id = bracket_content
+                    if (ref_id in refs) {
+                        result = result resolve_link_ref(bracket_content, ref_id)
+                        i = k + 1
+                        continue
+                    }
+                }
+            }
+            result = result substr(line, i, 1)
+            i++
+        } else {
+            result = result ch
+            i++
+        }
+    }
+    return result
+}
+
+END {
+    for (n = 1; n <= total; n++) {
+        if (is_ref[n]) continue
+        print process_refs(lines[n])
+    }
+}