replace std/re with tinyre

removes pcre dependency

Author: joachimschmidt557

flake.lock

@@ -20,7 +20,7 @@
 
               lockFile = ./lock.json;
 
-              buildInputs = with pkgs; [ termbox pcre ];
+              buildInputs = with pkgs; [ termbox ];
             };
 
           defaultPackage = packages.nimmm;

flake.nix

@@ -35,6 +35,18 @@
       "sha256": "06b9ylqbjcxgm9mjfzljbi8gr9sbajykcqpcxgyqymynqyhxmqjn",
       "srcDir": "src",
       "url": "https://github.com/shoyu777/wcwidth-nim/archive/86f8db1a883f6a64e590a56aed81e788389b7196.tar.gz"
+    },
+    {
+      "method": "fetchzip",
+      "packages": [
+        "tinyre"
+      ],
+      "path": "/nix/store/w556rbsnv2fxb229av2iq180ri9x0d9j-source",
+      "ref": "1.6.0",
+      "rev": "77469f58916369bc3863194cabb05238577fb257",
+      "sha256": "18wjz5yqzr1dz6286p2w02fk2xjr54l477g90bz4pskjcqrqnjbv",
+      "srcDir": "",
+      "url": "https://github.com/khchen/tinyre/archive/77469f58916369bc3863194cabb05238577fb257.tar.gz"
     }
   ]
 }

lock.json

@@ -14,3 +14,4 @@ requires "nim >= 1.4.4"
 requires "nimbox >= 0.1.0"
 requires "lscolors >= 1.0.0"
 requires "wcwidth >= 0.1.3"
+requires "tinyre"

nimmm.nimble

@@ -1,10 +1,12 @@
 import std/[os, sets, parseopt, sequtils, algorithm, strutils,
-            options, re, segfaults, selectors, dirs, paths, strformat, exitprocs]
+            options, segfaults, selectors, dirs, paths, strformat, exitprocs]
 
 import posix, posix/inotify
 
 import lscolors
 
+import tinyre
+
 import core, scan, draw, external, nimboxext, keymap, readline
 
 const
@@ -34,22 +36,22 @@ proc safeSetCurDir(s: var State, path: Path) =
   s.currentDirWatcher = s.inotifyHandle.inotifyAddWatch(os.getCurrentDir(),
                                                         inotifyMask)
 
-proc visible(entry: DirEntry, showHidden: bool, regex: Option[Regex]): bool =
+proc visible(entry: DirEntry, showHidden: bool, regex: Option[Re]): bool =
   let
     notHidden = showHidden or not isHidden(entry.path)
     matchesRe = if regex.isSome: extractFilename(entry.path).contains(
         regex.get) else: true
   matchesRe and notHidden
 
-proc compileRegex(searchQuery: string): Option[Regex] =
+proc compileRegex(searchQuery: string): Option[Re] =
   if searchQuery != "":
     try:
-      let compiled = re(searchQuery, flags = {reStudy, reIgnoreCase})
+      let compiled = re(searchQuery, flags = {reIgnoreCase})
       some(compiled)
-    except RegexError:
-      none(Regex)
+    except ValueError:
+      none(Re)
   else:
-    none(Regex)
+    none(Re)
 
 proc refresh(s: var State) =
   let