doc: fix header escaping regression (Issue #22065) #22084

rubys · 2018-08-02T11:02:46Z

Remove backslashes in headers.

Fixes: #22065

Checklist

make -j4 test (UNIX), or vcbuild test (Windows) passes
commit message follows commit guidelines

vsemozhetbyt · 2018-08-02T14:51:52Z

tools/doc/html.js

@@ -198,7 +198,8 @@ function preprocessElements({ filename }) {
          heading.children = [{
            type: 'text',
            value: file.contents.slice(
-              position.start.offset, position.end.offset),
+              position.start.offset, position.end.offset)
+              .replace(/\\.{1}/g, (match) => match[1]),


Maybe just:

.replace(/\\(?=.)/g, ''),

Or, if we need to exclude escaped escapes:

.replace(/\\(?=[^\\])/g, ''),

jslint doesn't accept .replace(/\\(?=.)/g, ''),:

/Users/rubys/git/node/tools/doc/html.js 202:29 error Unescaped dot character in regular expression node-core/no-unescaped-regexp-dot

I want to include escaped escapes.

Finally, lookahead isn't appropriate here. If we have an escaped escape, I want to emit a single backslash and then to not consider that backslash as an escape character. Consider four escapes in a row, the desired result would be two backslashes:

> "\\\\\\\\".replace(/\\(?=.)/g, '').length 1 > "\\\\\\\\".replace(/\\.{1}/g, (match) => match[1]).length 2

What about .replace(/\\(.{1})/g, '$1'),? Whould it be simpler and faster then function call and string index access?

BTW, we can disable linter rule for a line to simplify RegExp, but I am not sure what is more confusing:

// eslint-disable-next-line node-core/no-unescaped-regexp-dot .replace(/\\./g, (match) => match[1]),

vsemozhetbyt · 2018-08-02T16:53:42Z

CI-lite: https://ci.nodejs.org/job/node-test-pull-request-lite-pipeline/404/

vsemozhetbyt · 2018-08-02T17:03:44Z

Not sure what is wrong with CI. Is it infrastructural fails?

rubys · 2018-08-02T18:29:27Z

+ sed '/^/\s*$/d'
sed: 1: "/^/\s*$/d": invalid command code \

Somebody either changed the version of sed or changed the build script. So, yes, I would say this looks like infrastructure fails.

Between the two, I would say that changing the build script seems considerably more likely. The second slash just looks outright wrong. Perhaps they meant to have a backslash escaping the next backslash so that they shell would pass sed a regular expression containing only a single backslash. If that is indeed the problem, it would seem amusing given the change that this particular pull request is addressing. :-)

Trott · 2018-08-02T21:57:23Z

Replay: https://ci.nodejs.org/job/node-test-pull-request-lite-pipeline/408/

richardlau · 2018-08-03T03:24:17Z

Looks to be a real failure:

17:58:34 /data/iojs/build/workspace/node-test-commit-linuxone/nodes/rhel72-s390x/tools/doc/html.js:203
17:58:34             position
17:58:34             ^^^^^^^^
17:58:34 
17:58:34 SyntaxError: Unexpected identifier
17:58:34     at new Script (vm.js:72:7)
17:58:34     at createScript (vm.js:234:10)
17:58:34     at Object.runInThisContext (vm.js:286:10)
17:58:34     at Module._compile (internal/modules/cjs/loader.js:657:28)
17:58:34     at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
17:58:34     at Module.load (internal/modules/cjs/loader.js:599:32)
17:58:34     at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
17:58:34     at Function.Module._load (internal/modules/cjs/loader.js:530:3)
17:58:34     at Module.require (internal/modules/cjs/loader.js:637:17)
17:58:34     at require (internal/modules/cjs/helpers.js:20:18)
17:58:34 Building addon in /data/iojs/build/workspace/node-test-commit-linuxone/nodes/rhel72-s390x/test/addons/05_wrapping_c_objects
17:58:34 make[2]: *** [out/doc/api/path.html] Error 1

https://ci.nodejs.org/job/node-test-commit-linuxone/3483/nodes=rhel72-s390x/consoleFull

richardlau · 2018-08-03T03:24:35Z

tools/doc/html.js

@@ -198,7 +198,8 @@ function preprocessElements({ filename }) {
          heading.children = [{
            type: 'text',
            value: file.contents.slice(
-              position.start.offset, position.end.offset),
+              position.start.offset, position.end.offset)
+              .replace(/\\(.{1})/g, '$1')


Missing trailing comma?

vsemozhetbyt · 2018-08-03T06:19:34Z

CI-lite: https://ci.nodejs.org/job/node-test-pull-request-lite-pipeline/411/

vsemozhetbyt · 2018-08-03T06:34:10Z

Node.js Collaborators, please, add 👍 here if you approve fast-tracking.

vsemozhetbyt · 2018-08-03T21:56:22Z

It seems we have one more similar regression case: HTML entities verbatim rendering:

https://nodejs.org/download/nightly/v11.0.0-nightly20180803d68f946fe4/docs/api/inspector.html#inspector_event_lt_inspector_protocol_method_gt

Not sure if this should be fixed in this PR or in a new one.

jasnell · 2018-08-03T22:52:46Z

@rubys ... just a nit the prefix for the commit message here should be tools: rather than doc:

Also, just as a convention, it is helpful to include a [Squash] or [Fixup] prefix on commits that need to be squashed prior to landing.

rubys · 2018-08-05T17:55:35Z

My pull request for https://www.npmjs.com/package/mdast-util-to-hast has been accepted. Updating to the latest version of this dependency should fix everything. In fact, I should be able to back out some of the work that is currently committed. I'll run some tests and see what needs to be done from there.

jasnell · 2018-08-12T17:10:58Z

@rubys ... is this ready to go?

rubys · 2018-08-12T18:37:31Z

@jasnell: this PR is an accumulated set of workarounds to a remark bug, it certainly can go in now, but will all need to be backed out when these pull requests land: #22140 (comment)

fixes nodejs#22065

Preferred long term fix can be found at: nodejs#22140

rubys · 2018-08-13T01:00:06Z

CI: https://ci.nodejs.org/job/node-test-pull-request/16411/

rubys · 2018-08-13T05:47:01Z

My read is that the freebsd failure is unrelated. Unless there are any objections, I'll land this PR tomorrow.

quick fix for #22065 Preferred long term fix can be found at: #22140 PR-URL: #22084 Fixes: #22065 Reviewed-By: Vse Mozhet Byt <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Trivikram Kamat <[email protected]>

rubys · 2018-08-13T15:16:43Z

Landed in 59f8276

quick fix for #22065 Preferred long term fix can be found at: #22140 PR-URL: #22084 Fixes: #22065 Reviewed-By: Vse Mozhet Byt <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Trivikram Kamat <[email protected]>

nodejs-github-bot added doc Issues and PRs related to the documentations. tools Issues and PRs related to the tools directory. labels Aug 2, 2018

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vsemozhetbyt added fast-track PRs that do not need to wait for 48 hours to land. author ready PRs that have at least one approval, no pending requests for changes, and a CI started. labels Aug 3, 2018

jasnell changed the title ~~Issue 22065~~ doc: fix header escaping regression (Issue #22065) Aug 3, 2018

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lpinca mentioned this pull request Aug 4, 2018

doc: headerlines not rendered correctly with extra backslash #22123

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vsemozhetbyt mentioned this pull request Aug 5, 2018

tools: update to mdast-util-to-hast v3.0.2 #22140

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rubys mentioned this pull request Aug 7, 2018

Use \ for escaping in markdown #22169

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rubys added 4 commits August 12, 2018 18:08

doc: fix header escaping regression

255654d

fixes nodejs#22065

appease linter

d0d6ef7

replace function with capture and backreference

925f0eb

add back in missing comma (DOH!)

4c6e3e0

squash: quick fix for < and >

e956f6b

Preferred long term fix can be found at: nodejs#22140

rubys force-pushed the issue-22065 branch from c9e7083 to e956f6b Compare August 13, 2018 00:09

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rvagg mentioned this pull request Aug 15, 2018

Release proposal: v10.9.0 #22295

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doc: fix header escaping regression (Issue #22065) #22084

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