CODEWITHSUNDEEP
pdfpdf-generationxsl-foapache-fopdocbook
user2560999
user2560999

Reputation: 21

Apache FOP will not wrap my text

I want a block of text to wrap to the next line when it overflows. The text has no spaces or dashes. Apache FOP will not wrap this text nor clip it, even though the block contains the overflow="hidden" and wrap-option="wrap" attributes. The FO file does not contain any keep-together settings, so that can't cause this issue.

Version: problem occurs with Apache FOP 0.95, 1.0 and 1.1. Unfortunately, older versions don't work in my DocBook Maven setup, so I haven't tested these.

This is the block in my FO file:

<fo:block
 overflow="hidden"
 wrap-option="wrap"
 white-space-collapse="false"
 white-space-treatment="preserve"
 linefeed-treatment="preserve"
 text-align="start"
 margin-top="0.5em"
 margin-right="0.5pt"
 margin-bottom="1em"
 margin-left="0.5pt"
 border-width="0.5pt"
 border-left-style="solid"
 border-left-color="#D3CEC6"
 padding="2mm"
 font-family="Courier New"
 font-size="8pt"
 background-color="#EBE5D7">veryverylongtextwithoutspacesordashes
</fo:block>

Upvotes: 2

Views: 3548

Answers (2)

Atieh
Atieh

Reputation: 230

This might be old, but I came across this and wrote a FOP function to solve my issue.

<#function breakValue value limit>
  <#if value?length lte limit>
    <#return value>
  <#else>
    <#return value?substring(0, limit) + "&#x200b;" + breakValue(value?substring(limit))>
  </#if>
</#function>

where value is the string you want to break and limit is the index where you want to add &#x200b; and then call the same function on the remaining of the string.

Upvotes: 0

Be Brave Be Like Ukraine
Be Brave Be Like Ukraine

Reputation: 7735

In order to get string wrapped, you must have breakable characters within the line.
Consider pre-processing your input by inserting zero-width space character (&#x200b; or &#8203;) at certain places. The formatter will see it and it will break lines at these characters only where necessary. Other occurrences of this character will not be seen.

<fo:block>very&#x200b;very&#x200b;long&#x200b;text&#x200b;without&#x200b;spaces&#x200b;or&#x200b;dashes</fo:block>

If the text is a string of digits, it may be logical to insert zero-width space character at every nth symbol.

Alternatively, you may setup your formatter to hyphenate the string according to particular language's hyphenation rules. In fact, hyphenation is essentially based on adding hyphenation markers into the original text. Again, it would require the string to contain meaningful text belonging to a certain language.

Upvotes: 3

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