X-Git-Url: https://git.plutz.net/?a=blobdiff_plain;f=tools.sh;h=65327d7c38f229e3815b207f173d86823245ae50;hb=fd1e97fbca8ee7f27f5b2ad1bc14e0ac1a64f9ce;hp=57ae8274cc6d1fde2a5be157531734c8b246832d;hpb=f8bec3740e1d99684a5c33680e48d1f523c09983;p=shellwiki

diff --git a/tools.sh b/tools.sh
index 57ae827..65327d7 100755
--- a/tools.sh
+++ b/tools.sh
@@ -3,7 +3,7 @@
 [ "$include_tools" ] && return 0
 include_tools="$0"
 
-# Copyright 2022 - 2023 Paul Hänsch
+# Copyright 2022 - 2024 Paul Hänsch
 # 
 # Permission to use, copy, modify, and/or distribute this software for any
 # purpose with or without fee is hereby granted, provided that the above
@@ -151,11 +151,12 @@ page_abs(){
 }
 
 has_tags() {
+  # true if PAGE is tagges with all TAGS
   local page="$(page_abs "$1")"; shift 1;
   local tdir="$_DATA/tags" tag dt df
 
   for tag in "$@"; do
-    tag="$(printf %s "$tag" |awk '{ sub(/^#/, ""); gsub(/[^[:alnum:]]/, "_"); print toupper($0); }')"
+    tag="$(printf %s "$tag" |awk '{ sub(/^[#!]/, ""); gsub(/[^[:alnum:]]/, "_"); print toupper($0); }')"
     dt="$(DBM "${tdir}/${tag}" get "${page}")" || return 1
     df="$(stat -c %Y "$(mdfile "$page")")" || return 1
     if [ "$df" -gt "$dt" ]; then
@@ -165,3 +166,57 @@ has_tags() {
   done
   return 0
 }
+
+has_tag() {
+  # true if PAGE is tagged with any of TAGS
+  local page="$(page_abs "$1")"; shift 1;
+  local tdir="$_DATA/tags" tag dt df
+
+  for tag in "$@"; do
+    tag="$(printf %s "$tag" |awk '{ sub(/^[#!]/, ""); gsub(/[^[:alnum:]]/, "_"); print toupper($0); }')"
+    dt="$(DBM "${tdir}/${tag}" get "${page}")" || continue
+    df="$(stat -c %Y "$(mdfile "$page")")" || return 1
+    if [ "$df" -gt "$dt" ]; then
+      DBM "${tdir}/${tag}" remove "${page}"
+      continue
+    else
+      return 0
+    fi
+  done
+  return 1
+}
+
+page_title() {
+  local mdfile='' PAGE_TITLE=''
+
+  if mdfile="$(mdfile "${1}")"; then
+    PAGE_TITLE="$(
+      # pick title from %title pragma
+      sed -nE '
+        s;^%title[ \t]+([[:graph:]][[:print:]]+)\r?$;\1;p; tQ;
+        b; :Q q;
+      ' "$mdfile"
+    )"
+    [ ! "${PAGE_TITLE}" ] && PAGE_TITLE="$(
+      # pick title from first h1/h2 headline
+      MD_MACROS="" md <"$mdfile" \
+      | sed -nE '
+        s;^.*<h1[^>]*>(.*>)?([^<]+)(<.*)?</h1>.*$;\2;; tQ;
+        s;^.*<h2[^>]*>(.*>)?([^<]+)(<.*)?</h2>.*$;\2;; tQ;
+        b; :Q
+        # reverse escapes of cgilite HTML function,
+        # to prevent later double escaping
+        # later escaping must not be omited
+        s/&lt;/</g; s/&gt;/>/g;  s/&quot;/'\"'/g; s/&#x27;/'\''/g;
+        s/&#x5B;/[/g; s/&#x5D;/]/g;  s/&#x0D;/\r/g; s/&amp;/\&/g;
+        p; q;
+      '
+    )"
+  fi
+  if [ ! "${PAGE_TITLE}" ]; then
+    # use last part of page URL as title
+    PAGE_TITLE="${1%/}"
+    PAGE_TITLE="${PAGE_TITLE##*/}"
+  fi
+  printf %s\\n "$PAGE_TITLE"
+}