📄 follow_help.html
字号:
<!DOCTYPE html PUBLIC "-//IETF//DTD HTML 3.0//EN"><HTML><HEAD><TITLE>Help on the Follow link (or page) number feature</TITLE><LINK rev="made" href="mailto:lynx-dev@sig.net"><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"></HEAD><BODY><h1>+++ Follow link (or goto link or page) number Help +++<br>+++ Select option (or page) number Help +++</h1>If a user has set <em>Keypad mode</em> to <em>Links are numbered</em>,or <em>Form fields are numbered</em>,or <em>Links and form fields are numbered</em>as the default or for the current session via the <em>Options menu</em>,then hypertext links(and form fields, depending on the keypad mode)are prefixed with numbers in square brackets. Entering a keyboardor keypad number is treated as an <em>F_LINK_NUM</em> command, and shouldinvoke the <em>Follow link (or goto link or page) number:</em> statuslineprompt for apotentially multiple digit number corresponding to an indicated linknumber. If RETURN is pressed to terminate the number entry (e.g.,<em>123</em>) and it corresponds to a hypertext link, Lynx will retrievethe document for that link as if you had paged or used other navigationcommands to make it the current link and then ACTIVATE-ed it. The promptcan be invoked via '<em>0</em>', but it will not be treated as the leaddigit for the number entry, whereas '<em>1</em>' through '<em>9</em>' bothinvoke the prompt and are treated as the first digit.In <em>Form fields are numbered</em>or <em>Links and form fields are numbered</em> mode,if the number corresponds to a formfield you will be positioned on that field, but if it is a submit buttonit will not be ACTIVATE-ed.<p>If the number entered at the prompt has a '<em>g</em>' suffix (e.g.,<em>123g</em>), then Lynx will make the link corresponding to that numberthe current link, paging as appropriate if the link does not appear inthe currently displayed page. The '<em>g</em>' suffix is inferred (neednot be entered) for form fields in<em>Form fields are numbered</em> or<em>Links and form fields are numbered</em> mode.<p>Alternatively, if the number is given a '<em>p</em>' suffix (e.g.,<em>123p</em>), Lynx will make the page corresponding to that numberthe currently displayed page, and the first link on that page, if any,the current link. The '<em>g</em>' and '<em>p</em>' suffixes thusconvert the<em>Follow link (or goto link or page) number:</em> feature to an advancednavigation aid.<p>Finally, a user may add a <em>+</em> or <em>-</em> suffix to a numbercommand to indicate jumping forward or back relative to the current link orpage.For example, typing <em>1g+</em> followed by RETURN will move the currentlink to the next numbered link, skipping any intervening pagesor unnumbered links; <em>1g-</em> goes to the preceding numbered link.On a page without links, <em>3g+</em> goes to the 3rd link <em>following</em>the page. <em>5p+</em> skips ahead 5 pages, and so on.You can also enter <em>5+</em> or <em>5-</em>, which will activatethe 5th link ahead/behind where you are currently positioned.Note that typing <em>1g+</em> is different from typing a down arrowin that <em>1g+</em> skips pages containing no links, orintervening non-numbered links, such as form fields whenform fields are not numbered. It also differs fromthe <em><tab></em> command in that <em>1g+</em>does not skip over whole textareas, unless form fieldsare not numbered.<p><em>NOTE:</em> <em>1+g 1-g 1+p 1-p</em> are all recognized as equivalentto <em>1g+ 1g- 1p+ 1p-</em> . Any other (mistyped) characters endthe formula: e.g. <em>1gh+</em> is treated as <em>1g</em>.<p>If the user has set <em>Keypad mode</em> to <em>Numbers act as arrows</em>,then only '<em>0</em>', rather than every number, will be treated as an<em>F_LINK_NUM</em> command for invoking the <em>Follow link (or goto link or page)number:</em> prompt. The '<em>0</em>' will not be treated as the firstdigit for the number, or number plus suffix, entry.<p>Numbers are associated with form fields only when<em>Form fields are numbered</em> or<em>Links and form fields are numbered</em> mode has been selected.If you have selected<em>Numbers act as arrows</em> or <em>Links are numbered</em> mode, youcan seek form fields in the document via WHEREIS searches for strings intheir displayed values. If they are INPUT or TEXTAREA fields with novalues as yet, you can use two or more underscores as the search string,because underscores are used as placeholders for form fields in thedisplayed document.<p ID="select-option">When you have invoked a popup window for a list ofOPTIONs in a form's SELECT block, each OPTION is associated with a number,and that number will be displayed in<em>Form fields are numbered</em> or<em>Links and form fields are numbered</em> mode.In any keypad mode, the <em>F_LINK_NUM</em>('<em>0</em>') command will invoke a <em>Select option (or page)number:</em> prompt, and you can enter a number, and optionally a'<em>g</em>' or '<em>p</em>' suffix, to select or seek an OPTION in thatlist. If only a number is entered at the prompt, the corresponding OPTIONwill be selected and the popup will be retracted. If the '<em>g</em>'suffix is included, then you will be positioned on the corresponding OPTIONin the list, paging through the list if necessary, but it will not betreated as selected unless you enter the ACTIVATE (RETURN or right-arrow)command when positioned on the OPTION. For purposes of paging (e.g., inconjunction with the '<em>p</em>' suffix), a <em>page</em> is defined asthe number of OPTIONs displayed within the vertical dimension of the popupwindow.Finally, the <em>+</em> and <em>-</em> suffixes can be usedto move forward or back from the current option or page ina popup menu,similarly to the way they are used for links For example,while viewing a popup window, the user can type<em>3p+</em> and RETURNto skip ahead 3 pages, and <em>50g-</em> will move thecurrent selection back 50 options.This will work whether or not <em>keypad mode</em> is<em>Form fields are numbered</em> or<em>Links and form fields are numbered</em> since optionsare numbered internally. If form field numbering isturned off, the option numbers won't appear on screen,but the user can still navigate using these commands.<p>Note that HTML can be structured so that it includes <em>hiddenlinks</em>, i.e., without a visible link name intended for ACTIVATE-ingthe link. Such links may be created, for example, by making an IMG elementthe sole content of an Anchor element, and including an ALT="" attributename/value pair to suppress access to the link when the browser does nothave support for image handling available. They also can be created byhaving truly empty Anchor content, in cases for which the value of anAnchor's HREF attribute is intended as a navigation aid for robots(typically indexers) and not as content for a browser's rendition of thedocument. With the <em>-ismap</em> command line switch, Lynx willadditionally treat a link to a server-side image maps as hidden ifthere also is a client-side map for the same image.Finally, in some cases links that are not intended to be hiddenmay effectively become <em>hidden links</em> because of bad HTML.The <em>hidden links</em> differ from Anchors that have only aNAME or ID attribute name/value pair (intended as positioning targets fromother links which do have HREF attributes and values that include afragment).<p>Lynx respects instructions for <em>hidden links</em> and normally doesnot include them in the rendition of the document. However, if the commandline switch <em>-hiddenlinks=merge</em> is used, such links will still benumbered in sequence with other links which are not hidden, and if <em>Linksare numbered</em> mode is also on, link numbers will appear for them in thedisplayed text (except for links to image maps which are hidden because of<em>-ismap</em>). If <em>-hiddenlinks=listonly</em> or<em>-hiddenlinks=ignore</em> is in effect, <em>hidden links</em> will not beshown in the text even in <em>links are numbered</em> mode. Not using a<em>-hiddenlinks</em> flag at all is equivalent to<em>-hiddenlinks=listonly</em>.<p>If a document includes<em>hidden links</em>, they will be reported, with appropriate labeling,in the menus created for the LIST ('<em>l</em>') or ADDRLIST ('<em>A</em>')commands, unless <em>-hiddenlinks=ignore</em> is used. They can then beACTIVATE-ed via those menus. Also, if a link was hidden because of an ALTattribute in an IMG element, it will be converted to a <em>visible link</em>whenever the IMAGE_TOGGLE ('<em>*</em>') command is used to create linksfor SRC attribute values of IMG elements, because this indicates that theuser does have some form of image handling enabled via a helper application,or wishes to download files for subsequent use with a graphic browser orother suitable software.<p>HTML forms also may have fields with a HIDDEN attribute, indicating thata name/value pair for the fields should be included in the content submittedfor the form, but the value should not be displayed in the rendered form.Lynx respects this attribute as well, and neither displays the HIDDEN field,nor assigns it a number for the F_LINK_NUM ('<em>0</em>') command and<em>Form fields are numbered</em> or<em>Links and form fields are numbered</em> keypad mode handling, norincludes an entry for it in the menus created for the LIST ('<em>l</em>')or ADDRLIST ('<em>A</em>')commands. However, the HIDDEN name/value pairs are included in any displaysof submitted form content in the <em>Information about the currentdocument</em> that is invoked by the INFO ('<em>=</em>') command.</BODY></HTML>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -