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authorMark Lodato <lodatom@gmail.com>2010-02-09 10:12:43 -0500
committerMark Lodato <lodatom@gmail.com>2010-02-09 10:12:43 -0500
commita2c6355f9fdede78ce46aeee39ef649637aaadf9 (patch)
tree4ed595f688691e7a35c5684ca59164bcc777b74c /scan-tree.c
parent8aab27f24de70acfbdcee31c634a4b1facf23b92 (diff)
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html: properly percent-escape URLs
The only valid characters for a URL are unreserved characters a-zA-Z0-9_-.~ and the reserved characters !*'();:@&=+$,/?%#[] , as per RFC 3986. Everything else must be escaped. Additionally, the # and ? always have special meaning, and the &, =, and + have special meaning in a query string, so they too must be escaped. To make this easier, a table of escapes is now used so that we do not have to call fmt() for each character; if the entry is 0, no escaping is needed. Signed-off-by: Mark Lodato <lodatom@gmail.com>
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