编辑“︁帮助:CS1 errors”︁（章节）

==<span id="invisible_char">&lt;char> character in |&lt;param>= at position ''n''</span>==
<section begin=invisible_char_help_text />{{help desk}}<span class="error">&lt;char> character in <code style="color:inherit; border:inherit; padding:inherit;">|<param>=</code> at position ''n''</span>

This error is reported for citations with parameter values that contain invisible or non-printable characters known as [[control character]]s; the error includes the position at which the character can be found.  [[Module:Citation/CS1]] detects parameter values that contain any of these characters:

:[[replacement character]], U+FFFD
:[[hair space]], U+200A
:[[zero width space]], U+200B
:[[zero width joiner]], U+200D (January 2018 note: text in Sinhalese reports this error due to a bug; a fix will be deployed in the first quarter of 2018)
:[[soft hyphen]], U+00AD
:[[horizontal tab]], U+0009 (HT)
:[[line feed]], U+0010 (LF)
:[[carriage return]], U+0013 (CR)
:[[delete character]], U+007F (DEL)
:[[C0 and C1 control codes|C0 control]], U+0000–U+001F (NULL–US)
:[[C0 and C1 control codes|C1 control]], U+0080–U+009F (XXX–APC)
To resolve invisible-character errors, remove or replace the identified character. Because these characters are mostly invisible, the error message identifies the character's position in the parameter value counted from the left. Space characters between the assignment operator (the '=' sign) and the parameter value are not counted.

<span class="error"><name> stripmarker in <code style="color:inherit; border:inherit; padding:inherit;">|<param>=</code> at position ''n''</span>

[[Help:Strip markers|Strip markers]] are special sequences of characters that [[MediaWiki]] inserts as a place-holder for certain [[xml]]-like tags.  These tags include {{tag|gallery}}, {{tag|math}}, {{tag|nowiki}}, {{tag|pre}}, and {{tag|ref}}.  The strip markers are replaced with content before the final page rendering.  The module ignores math and nowiki strip markers.

To resolve strip marker errors, remove or replace the identified tag.  The error message identifies the strip marker's position in the parameter value counted from the left.  Space characters between the assignment operator (the '=' sign) and the parameter value are not counted.

Strip marker errors can also be caused by unsupported additional text or templates in parameter values (e.g. {{tl|ISBN}} in {{para|title}}). Resolve the problem by moving the extraneous text outside of the citation template or by removing the extraneous text or template markup, as appropriate.

Pages with this error are automatically placed in {{#ifeq: {{FULLPAGENAME}} | Category:CS1 errors: invisible characters | Category:CS1 errors: invisible characters | [[:Category:CS1 errors: invisible characters]]}}.<ref group="lower-alpha" name="categories" /><section end=invisible_char_help_text />