Japanese Windows 2byte code

[IamKojiFurukawa]

能率.csv
**Describe the bug**
A concise description of the problem you found with cloc.
Using with Japanese Windows 2byte code file name.
cloc; OS; OS version

• cloc version:2.02
• If running the cloc source, Perl version:
• OS (eg Linux, Windows, macOS, etc): Windows
• OS version: 11h2

To Reproduce
Steps one can follow reproduce the behavior you're seeing.
cloc.exe 能率.c
cloc.exe 日本語\source

included japanese 2byte code in path

Expected result
A concise description of what you expected to happen.
The cloc command can not find source files.

Additional context
Add any other context about the problem here.

Hello
The cloc command is very useful.
On Japanese Windows, there seems to be a problem if the path name is Japanese double byte code.
Do not convert between uppercase and lowercase characters. Do not convert between backslashes and slashes.
The <: encoding (shiftjis)
#ex: open_file("<:encoding(shiftjis)", $file, 1);

Japanese windows use Shift-JIS code for file path
#import use Encode qw(encode decode);
#ex. open mode: open(my $fh,"<:encoding(shiftjis)", $file);
#do not this# $file =~ s{\}{/}g if $ON_WINDOWS;
#this is not good#　$upper_lower_map{$lc} = $file;

Please fix it.
Thank you.
Koji Furukawa

[AlDanial]

This problem will be difficult for me to fix since I won't be able to test the correctness of my changes.

Can you install a Perl interpreter (eg https://strawberryperl.com/) on your computer? If yes, I can send you my code changes and you can test for me.

[IamKojiFurukawa]

Thank you responce, I have installed that already.
I can use pp command.
Best Regards,

[AlDanial]

Let's tackle this in steps. At the moment cloc still does / -> \ and uses the upper_lower_map. However I added a new option to take an arbitrary encoding so this
cloc.exe --encoding shiftjis 能率.c
should work on Windows with 3f7257f.

Also, if it is possible, please see if the original cloc works from the Windows Subsystem for Linux on your computer. On my Linux computer there are no problems with Japanese file names or directories:

» find . -type f
./能.c
./日本語/能率.c


» cloc --by-file .        
       2 text files.
       2 unique files.                              
       0 files ignored.

github.com/AlDanial/cloc v 2.03  T=0.00 s (443.8 files/s, 1109.4 lines/s)
----------------------------------------------------------------------------------
File                                blank        comment           code
----------------------------------------------------------------------------------
./日本語/能率.c                    0              0              2
./能.c                                 1              0              2
----------------------------------------------------------------------------------
SUM:                                    1              0              4
----------------------------------------------------------------------------------

[IamKojiFurukawa]

Thank you for updateing.
I will chek with Japanese Windows.
Regards.
Koji Furukawa

[IamKojiFurukawa]

I have tested with --encodeing shiftjis
it dose not work correctry.

doble byte char file path has special value 0x80 to 0xff
it needs 1st char is ASCII code or not.
don't replace "" to "/" and lower case upper case in double byte code as below.

insted code of $file =~ s{\}{/}g if $ON_WINDOWS;

$file =~ s{
(\) #
|
([^\x00-\x7F]) # double byte char ( not ASCII ）
}{
$1 ? '/' : $2 # single byte char
}egx if $ON_WINDOWS;

I did debug , but not finished.
I will try more..
Thank you .

[AlDanial]

Let's start with the basics. Save this small program to your Windows computer and let me know if it can read the problematic files you mentioned above:

#!/usr/bin/env perl
use warnings;
use strict;
foreach my $in_file (@ARGV) {
    my $fh;
    open($fh,"<:encoding(shiftjis)",$in_file) or die "Can't open $in_file: $!";
    while (<$fh>) {
        print "$in_file -> $_";
    }
}

[nickjp-personal]

Hi Albert,

Thank you so much for your effort to maintaing the useful tool.
I really respect you who continue to maintain and reply report from them.

Now, I think detected the issue point.
The file path that include multibyte code was broken after passed below line in make_file_list().
When I skip the part with "--unix" even though running on Windows, the files were counted tentatively

But I'm not sure how to fix...
If hope, it's helpful for you to fix this issue.

    my $nFiles_Categorized = 0;

    foreach my $file (@file_list) {
        my $F = lower_on_Windows($file);
        if ($ON_WINDOWS) {
            (my $lc = lc $file) =~ s{\\}{/}g;  ### @@@@@ here @@@@@
            $upper_lower_map{$lc} = $file;
            $file = $lc;
        }
        printf "classifying $file\n" if $opt_v > 2;

Appendix

Snipped debug code

    foreach my $file (@file_list) {
        printf "DBG1: $file\n";

        my $F = lower_on_Windows($file);
        printf "DBG2: $F\n";

        if ($ON_WINDOWS) {
            (my $lc = lc $file) =~ s{\\}{/}g;
            printf "DBG3: $lc\n";
            $upper_lower_map{$lc} = $file;
            printf "DBG4: $lc\n";
            $file = $lc;
        }

Result1 as an issue case

> cloc-2.04_test.pl --by-file --skip-uniqueness ja
DBG1: ja/日本語/能率.pl
DBG2: ja/日本語/能率.pl
DBG3: ja/日本語/・率.pl
DBG4: ja/日本語/・率.pl

Result2 with "--unix"

> cloc-2.04_test.pl --unix --by-file --skip-uniqueness ja
DBG1: ja/日本語/能率.pl
DBG2: ja/日本語/能率.pl
      1 unique files.
       0 files ignored.

github.com/AlDanial/cloc v 2.04  T=0.08 s (117.8 files/s, 2308.6 lines/s)
---------------------------------------------------------------------------------
File                               blank        comment           code
---------------------------------------------------------------------------------
ja/日本語/能率.pl                      0              0             10

Info about Broken character

See https://0g0.org/unicode/80FD/ as one of the example.

[nickjp-personal]

Hi Albert,

I tried to fix this issue, then I found one approach as below sample patch.

• When change to lowercase or from / to , once it's convert from cp932 to utf8.
  And re-convert from utf8 to cp932 after changed.

• I tried to apply them to related lines as much as possible. But it may not be enough.
  I hope it's reviewed with another guy.

• And I'm novice as Perl programmer. So there may be more smart coding.
  Anyway it's solve the issue on cp932.

• When we change from "cp932" to $opt_encoding, it will support to another cod page.
  But I understand "--encoding" option is used for not a file-name but a file-content itself.
  So I think the filename encoding should be handled with another option separatelly.
  I hope Albert's idea as the formal approach.

sample patch

cloc-2.04_mod.patch

--- cloc/cloc-2.04.pl	Mon Feb 24 20:46:44 2025
+++ cloc/cloc-2.04_mod.pl	Sat Mar  1 01:05:44 2025
@@ -1262,7 +1262,7 @@
                        );
     foreach my $F (@files_added_tot) {
         if ($ON_WINDOWS) {
-            (my $lc = lc $F) =~ s{\\}{/}g;
+            my $lc = convert_path($F);
             $upper_lower_map{$lc} = $F;
             $F = $lc;
         }
@@ -1270,7 +1270,7 @@
     }
     foreach my $F (@files_removed_tot) {
         if ($ON_WINDOWS) {
-            (my $lc = lc $F) =~ s{\\}{/}g;
+            my $lc = convert_path($F);
             $upper_lower_map{$lc} = $F;
             $F = $lc;
         }
@@ -5872,11 +5872,21 @@
     # %upper_lower_map is ordinarily populated.
     my ($path,) = @_;
     return $path unless $ON_WINDOWS;
-    my $lower = lc $path;
-    $upper_lower_map{$lower} = $path;
-    return $lower;
+    my $utf8_path    = decode("cp932", $path);
+    my $utf8_path_lc = lc $utf8_path;
+    my $cp932_lc     = encode("cp932", $utf8_path_lc);
+    $upper_lower_map{$cp932_lc} = $path;
+    return $cp932_lc;
 }
-# }}}
+# 1}}}
+sub convert_path {                            # {{{1
+    my ($path) = @_;
+    my $utf8_path    = decode("cp932", $path);
+       $utf8_path    =~ s{\\}{/}g;
+    my $utf8_path_lc = lc $utf8_path;
+    return encode("cp932", $utf8_path_lc);
+}
+# 1}}}
 sub make_file_list {                         # {{{1
     my ($ra_arg_list,  # in   file and/or directory names to examine
         $iteration  ,  # in   0 if only called once, 1 or 2 if twice for diff
@@ -6026,7 +6036,7 @@
     foreach my $file (@file_list) {
         my $F = lower_on_Windows($file);
         if ($ON_WINDOWS) {
-            (my $lc = lc $file) =~ s{\\}{/}g;
+            my $lc = convert_path($file);
             $upper_lower_map{$lc} = $file;
             $file = $lc;
         }
@@ -6247,7 +6257,11 @@
             next;
         }
         chomp($file);
-        $file =~ s{\\}{/}g if $ON_WINDOWS;
+        if ($ON_WINDOWS) {
+            my $utf8_file = decode("cp932", $file);
+            $utf8_file =~ s{\\}{/}g;
+            $file = encode("cp932", $utf8_file);
+        }
         $rh_Language->{$file} = $language;
         push @{$files_by_size{$size_in_bytes}}, $file;
         if ($opt_skip_uniqueness) {

tested characters

I generated files that have all cp932's characters as the file name.
cp932 is default code page on Japanease version Windows.

I used cp932all.pl script to generate them.
https://users.miraclelinux.com/technet/samba30/cp932_script.html
And it's excluded non-printable character and Å from generated manually.
(lowercase of Å is not handled as cp932. So if lowercase of Å is changed to lowercase with lc(), it's translated to just "a" alternatively, but it's wrong)

Actual tested filenames (Tested on Windows11 22H2)

cp932_tested_filenames.zip

　、。，．・：；？！゛゜´｀¨＾￣＿ヽヾゝゞ〃仝々〆〇ー―‐／＼～∥｜…‥‘’“”（）〔〕［］｛｝〈〉《》「」『』【】＋－±×÷＝≠＜＞≦≧∞∴♂♀°′″℃￥＄￠￡％＃＆＊＠§☆★○●◎◇◆□■△▲▽.txt
▼※〒→←↑↓〓∈∋⊆⊇⊂⊃∪∩∧∨￢⇒⇔∀∃∠⊥⌒∂∇≡≒≪≫√∽∝∵∫∬ʼn♯♭♪†‡¶◯０１２３４５６７８９ＡＢＣＤＥＦＧＨＩＪＫＬＭＮＯＰＱＲＳＴＵＶＷＸＹＺａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑ.txt
ｒｓｔｕｖｗｘｙｚぁあぃいぅうぇえぉおかがきぎくぐけげこごさざしじすずせぜそぞただちぢっつづてでとどなにぬねのはばぱひびぴふぶぷへべぺほぼぽまみむめもゃやゅゆょよらりるれろゎわゐゑをんァアィイゥウェエ.txt
ォオカガキギクグケゲコゴサザシジスズセゼソゾタダチヂッツヅテデトドナニヌネノハバパヒビピフブプヘベペホボポマミムメモャヤュユョヨラリルレロヮワヰヱヲンヴヵヶΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧ.txt
ΨΩαβγδεζηθικλμνξοπρστυφχψωАБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдеёжзийклмнопрстуфхцчшщъыьэюя─│┌┐┘└├┬.txt
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聿肄肆肅肛肓肚肭冐肬胛胥胙胝胄胚胖脉胯胱脛脩脣脯腋隋腆脾腓腑胼腱腮腥腦腴膃膈膊膀膂膠膕膤膣腟膓膩膰膵膾膸膽臀臂膺臉臍臑臙臘臈臚臟臠臧臺臻臾舁舂舅與舊舍舐舖舩舫舸舳艀艙艘艝艚艟艤艢艨艪艫舮艱艷艸艾芍芒芫.txt
芟芻芬苡苣苟苒苴苳苺莓范苻苹苞茆苜茉苙茵茴茖茲茱荀茹荐荅茯茫茗茘莅莚莪莟莢莖茣莎莇莊荼莵荳荵莠莉莨菴萓菫菎菽萃菘萋菁菷萇菠菲萍萢萠莽萸蔆菻葭萪萼蕚蒄葷葫蒭葮蒂葩葆萬葯葹萵蓊葢蒹蒿蒟蓙蓍蒻蓚蓐蓁蓆蓖蒡蔡.txt
蓿蓴蔗蔘蔬蔟蔕蔔蓼蕀蕣蕘蕈蕁蘂蕋蕕薀薤薈薑薊薨蕭薔薛藪薇薜蕷蕾薐藉薺藏薹藐藕藝藥藜藹蘊蘓蘋藾藺蘆蘢蘚蘰蘿虍乕虔號虧虱蚓蚣蚩蚪蚋蚌蚶蚯蛄蛆蚰蛉蠣蚫蛔蛞蛩蛬蛟蛛蛯蜒蜆蜈蜀蜃蛻蜑蜉蜍蛹蜊蜴蜿蜷蜻蜥蜩蜚蝠蝟蝸.txt
蝌蝎蝴蝗蝨蝮蝙蝓蝣蝪蠅螢螟螂螯蟋螽蟀蟐雖螫蟄螳蟇蟆螻蟯蟲蟠蠏蠍蟾蟶蟷蠎蟒蠑蠖蠕蠢蠡蠱蠶蠹蠧蠻衄衂衒衙衞衢衫袁衾袞衵衽袵衲袂袗袒袮袙袢袍袤袰袿袱裃裄裔裘裙裝裹褂裼裴裨裲褄褌褊褓襃褞褥褪褫襁襄褻褶褸襌褝襠.txt
襞襦襤襭襪襯襴襷襾覃覈覊覓覘覡覩覦覬覯覲覺覽覿觀觚觜觝觧觴觸訃訖訐訌訛訝訥訶詁詛詒詆詈詼詭詬詢誅誂誄誨誡誑誥誦誚誣諄諍諂諚諫諳諧諤諱謔諠諢諷諞諛謌謇謚諡謖謐謗謠謳鞫謦謫謾謨譁譌譏譎證譖譛譚譫譟譬譯譴譽.txt
讀讌讎讒讓讖讙讚谺豁谿豈豌豎豐豕豢豬豸豺貂貉貅貊貍貎貔豼貘戝貭貪貽貲貳貮貶賈賁賤賣賚賽賺賻贄贅贊贇贏贍贐齎贓賍贔贖赧赭赱赳趁趙跂趾趺跏跚跖跌跛跋跪跫跟跣跼踈踉跿踝踞踐踟蹂踵踰踴蹊蹇蹉蹌蹐蹈蹙蹤蹠踪蹣蹕.txt
蹶蹲蹼躁躇躅躄躋躊躓躑躔躙躪躡躬躰軆躱躾軅軈軋軛軣軼軻軫軾輊輅輕輒輙輓輜輟輛輌輦輳輻輹轅轂輾轌轉轆轎轗轜轢轣轤辜辟辣辭辯辷迚迥迢迪迯邇迴逅迹迺逑逕逡逍逞逖逋逧逶逵逹迸遏遐遑遒逎遉逾遖遘遞遨遯遶隨遲邂遽.txt
邁邀邊邉邏邨邯邱邵郢郤扈郛鄂鄒鄙鄲鄰酊酖酘酣酥酩酳酲醋醉醂醢醫醯醪醵醴醺釀釁釉釋釐釖釟釡釛釼釵釶鈞釿鈔鈬鈕鈑鉞鉗鉅鉉鉤鉈銕鈿鉋鉐銜銖銓銛鉚鋏銹銷鋩錏鋺鍄錮錙錢錚錣錺錵錻鍜鍠鍼鍮鍖鎰鎬鎭鎔鎹鏖鏗鏨鏥鏘鏃.txt
鏝鏐鏈鏤鐚鐔鐓鐃鐇鐐鐶鐫鐵鐡鐺鑁鑒鑄鑛鑠鑢鑞鑪鈩鑰鑵鑷鑽鑚鑼鑾钁鑿閂閇閊閔閖閘閙閠閨閧閭閼閻閹閾闊濶闃闍闌闕闔闖關闡闥闢阡阨阮阯陂陌陏陋陷陜陞陝陟陦陲陬隍隘隕隗險隧隱隲隰隴隶隸隹雎雋雉雍襍雜霍雕雹霄霆.txt
霈霓霎霑霏霖霙霤霪霰霹霽霾靄靆靈靂靉靜靠靤靦靨勒靫靱靹鞅靼鞁靺鞆鞋鞏鞐鞜鞨鞦鞣鞳鞴韃韆韈韋韜韭齏韲竟韶韵頏頌頸頤頡頷頽顆顏顋顫顯顰顱顴顳颪颯颱颶飄飃飆飩飫餃餉餒餔餘餡餝餞餤餠餬餮餽餾饂饉饅饐饋饑饒饌饕.txt
馗馘馥馭馮馼駟駛駝駘駑駭駮駱駲駻駸騁騏騅駢騙騫騷驅驂驀驃騾驕驍驛驗驟驢驥驤驩驫驪骭骰骼髀髏髑髓體髞髟髢髣髦髯髫髮髴髱髷髻鬆鬘鬚鬟鬢鬣鬥鬧鬨鬩鬪鬮鬯鬲魄魃魏魍魎魑魘魴鮓鮃鮑鮖鮗鮟鮠鮨鮴鯀鯊鮹鯆鯏鯑鯒鯣鯢.txt
鯤鯔鯡鰺鯲鯱鯰鰕鰔鰉鰓鰌鰆鰈鰒鰊鰄鰮鰛鰥鰤鰡鰰鱇鰲鱆鰾鱚鱠鱧鱶鱸鳧鳬鳰鴉鴈鳫鴃鴆鴪鴦鶯鴣鴟鵄鴕鴒鵁鴿鴾鵆鵈鵝鵞鵤鵑鵐鵙鵲鶉鶇鶫鵯鵺鶚鶤鶩鶲鷄鷁鶻鶸鶺鷆鷏鷂鷙鷓鷸鷦鷭鷯鷽鸚鸛鸞鹵鹹鹽麁麈麋麌麒麕麑麝麥麩.txt
麸麪麭靡黌黎黏黐黔黜點黝黠黥黨黯黴黶黷黹黻黼黽鼇鼈皷鼕鼡鼬鼾齊齒齔齣齟齠齡齦齧齬齪齷齲齶龕龜龠堯槇遙瑤凜熙ⅰⅱⅲⅳⅴⅵⅶⅷⅸⅹ￤＇＂纊褜鍈銈蓜俉炻昱棈鋹曻彅丨仡仼伀伃伹佖侒侊侚侔俍偀倢俿倞偆偰偂傔僴僘.txt
兊兤冝冾凬刕劜劦勀勛匀匇匤卲厓厲叝﨎咜咊咩哿喆坙坥垬埈埇﨏塚增墲夋奓奛奝奣妤妺孖寀甯寘寬尞岦岺峵崧嵓﨑嵂嵭嶸嶹巐弡弴彧德忞恝悅悊惞惕愠惲愑愷愰憘戓抦揵摠撝擎敎昀昕昻昉昮昞昤晥晗晙晴晳暙暠暲暿曺朎朗杦枻.txt
桒柀栁桄棏﨓楨﨔榘槢樰橫橆橳橾櫢櫤毖氿汜沆汯泚洄涇浯涖涬淏淸淲淼渹湜渧渼溿澈澵濵瀅瀇瀨炅炫焏焄煜煆煇凞燁燾犱犾猤猪獷玽珉珖珣珒琇珵琦琪琩琮瑢璉璟甁畯皂皜皞皛皦益睆劯砡硎硤硺礰礼神祥禔福禛竑竧靖竫箞精絈.txt
絜綷綠緖繒罇羡羽茁荢荿菇菶葈蒴蕓蕙蕫﨟薰蘒﨡蠇裵訒訷詹誧誾諟諸諶譓譿賰賴贒赶﨣軏﨤逸遧郞都鄕鄧釚釗釞釭釮釤釥鈆鈐鈊鈺鉀鈼鉎鉙鉑鈹鉧銧鉷鉸鋧鋗鋙鋐﨧鋕鋠鋓錥錡鋻﨨錞鋿錝錂鍰鍗鎤鏆鏞鏸鐱鑅鑈閒隆﨩隝隯霳霻.txt
靃靍靏靑靕顗顥飯飼餧館馞驎髙髜魵魲鮏鮱鮻鰀鵰鵫鶴鸙黑.txt

By the way, "--encoding" does not work wel as below error in Windows executable at least.

Some code page module is required ??

cloc-2.04.exe --by-file --encoding shiftjis ja
Cannot find encoding "shiftjis" at script/cloc line 6462.
Failed open('<:encoding(shiftjis)', sample.pl): Invalid argument at script/cloc line 6462.

cloc-2.04.exe --by-file --encoding cp932 ja
Cannot find encoding "cp932" at script/cloc line 6462.
Failed open('<:encoding(cp932)', sample.pl): Invalid argument at script/cloc line 6462.

[AlDanial]

Thanks for the code diff. I'll need a couple of days to study this.

[AlDanial]

@nickjp-personal I am OK with your patch. Is it reasonable to restrict the use of decode("cp932", ...) and encode("cp932", ...) to be used only when --file-encoding cp932 is given?

Regarding problems with cloc-2.04.exe --by-file --encoding shiftjis ja, does that problem happen with the Perl source version of cloc also?

[IamKojiFurukawa]

Hi nickjp-personal san
I have checkd with your patch.
It is working well my Japanese Windows.
Thank you .

but in this case has a problem

c:\xxx> mkdir 能率
c:\xxx> cd 能率
cloc-2.04-patch.exe .\

C:\xxx\能率>..\clocl-2.04-patch.exe .
Cannot chdir back to C:/xxx/・率: No such file or directory at script/cloc-204-patch.pl line 132.

131: if ($ON_WINDOWS) {
132: my $exec_path = abs_path($0);

dose abs_path need to change?

[nickjp-personal]

Hi Albert,

I am OK with your patch. Is it reasonable to restrict the use of decode("cp932", ...) and encode("cp932", ...) to be used only when --file-encoding cp932 is given?

Thanks for your support.
Yes, I agree with you.
In almost case, I think the file path does not include multibyte code for source code, basically.

But I feel it's hard to understand the meaining from "--file-encoding" that seems like "--encoding", even if it's explained in help.
So I suggest "--filename-encoding" or "--name-encoding". (But I feel it's long, so not cool a little..)
Of course, I will follow your decision as the owner.

Regarding problems with cloc-2.04.exe --by-file --encoding shiftjis ja, does that problem happen with the Perl source version of cloc also?

Sorry, I'm not sure.
I'm debugging on Windows Sandbox.
After installed only strawberry-perl-5.40.0.1-64bit.msi, run similar with script for same folder as below.
But it's not reproduced...

The error is not reproduced in your env ?
I could reproduce with non-multibye code file. (E.g: cloc-2.04.exe --encoding shiftjis a.txt. a.txt have only "123" as ASCII code)

>cloc-2.04.pl --by-file --encoding cp932 ja
       1 text file.
       1 unique file.
       0 files ignored.

github.com/AlDanial/cloc v 2.04  T=0.03 s (30.7 files/s, 1044.2 lines/s)
-------------------------------------------------------------------------------
File                             blank        comment           code
-------------------------------------------------------------------------------
ja\sample.pl                         6              7             21
-------------------------------------------------------------------------------

===========

Hi IamKojiFurukawa,

Cannot chdir back to C:/xxx/・率: No such file or directory at script/cloc-204-patch.pl line 132.

Thanks for the report. I also reproduced.

It seems similar issue happen in abs_path(), the path info was broken in line472, and used in line505.
I'm not sure why the chdir() is required.
And I think it's take a time to solve in PathTools module side now.
https://metacpan.org/release/XSAWYERX/PathTools-3.75/source/Cwd.pm#L472
https://metacpan.org/release/XSAWYERX/PathTools-3.75/source/Cwd.pm#L505

We may be able to replace "abs_path($0)" to "File::Spec->rel2abs($0);", if it's just required to get the absolute path.
(It's suggested from MS-Copilot)
At least, rel2abs() does not invoke the error. and same path info between rel2abs($0) and $0 as non-symbolic case.

But I can not verify #849 issue.
So have not checked whether it's available via readlink or not.
If it's also work, we may be able to replace the point, too.
I hope Albert's opinion about this.

sample

if ($ON_WINDOWS) {
    my $exec_path = File::Spec->rel2abs($0);
    if (-l $0) {
        $exec_path = File::Spec->rel2abs(readlink($0));
    }
    $0 = $exec_path;
}

[IamKojiFurukawa]

Hi nickjp-personal-san
Thank you for responce.

I have replaced "abs_path(" to "File::Spec->rel2abs()"
But It is not fixed the issue.

H:\cloc\能率>..\clocl204p2.exe .
Cannot chdir back to H:/cloc/・率: No such file or directory at /File/Tep.pm line 963.

replace "" to "/" slash , back slash is issue .

[nickjp-personal]

Hi IamKojiFurukawa,

Cannot chdir back to H:/cloc/・率: No such file or directory at /File/Tep.pm line 963.

Yes, I also ended up there...
abs_path() is used in tempfile(UNLINK => 1) of temp module, indirectly.
https://metacpan.org/release/ETHER/File-Temp-0.2311/source/lib/File/Temp.pm#L963
So it's not avoided from cloc code directly.

Now I just come up 3 approaches as follows.

• a) Take in Cwd and File::Temp modules in cloc code like Regexp::Common, and refine for code page.
• b) Find out althernative File::Temp.
• c) Override abs_path() of Cwd with abs_path() of Cwd::utf8.

I think approach-c is better than the others if they are available.
approach-a requires to capture over 2KL for them. So it's not reasnable include the maintaining.

If we can archive approach-c, it will solve the cause include another lines that may detect later.
But I have not checked Cwd::utf8 behavior.
I also concern when only abs_path() is overrided, whether the combination of Cwd's and Cwd::utf8 functions work well.

Anyway I think we need to try approach-c for now.