Re: escaping characters
hi all, for an example, when a program reads in a latex source, is there an escape function that can rewrite all `\' to `\\', `"' to `\"', and so on? thank you. kejia ☵☯☲ 2012/10/31 Ludovic Courtès : > Hi, > > Kejia柯嘉 skribis: > >> is there a function that can escape of a string every character which >> is an escape character? > > What do you mean by “escape character”? > > Ludo’. > >
Re: escaping characters
() Kejia柯嘉 () Thu, 1 Nov 2012 10:24:52 -0400 for an example, when a program reads in a latex source, is there an escape function that can rewrite all `\' to `\\', `"' to `\"', and so on? This kind of escaping for backslash and double-quote (and other chars, depending on Guile flavor) is built-in for ‘(object->string STRING)’, but anything else (the "and so on" bit) you have to define for yourself, or find something already defined. For example, Guile-BAUX provides module ‘(guile-baux write-string)’ which exports proc ‘write-string’ that handles twelve additional characters: http://www.gnuvola.org/software/guile-baux/guile-baux.html.gz#write_002dstring Another example is Guile-PG module ‘(database postgres-qcons)’, which has all manner of procs to DTRT for various "and so on" cases: http://www.nongnu.org/guile-pg/doc/qcons-quoting.html#qcons-quoting I think it would be nice for these procs (and perhaps your LaTeX oriented one, once defined) to be rebased onto a general one, hosted apart from any particular Guile version (perhaps Guile-Lib -- is that project still viable?). Or maybe i'm missing something already out there by now. I remember fruitlessly searching a number of years back, but things may have changed since then. Here's some related discussion: http://lists.gnu.org/archive/html/guile-user/2012-01/msg00114.html [cc trimmed] -- Thien-Thi Nguyen . GPG key: 4C807502 . NB: ttn at glug dot org is not me . . (and has not been since 2007 or so) . .ACCEPT NO SUBSTITUTES . ... please send technical questions to mailing lists ... pgpfC3hCAcbuH.pgp Description: PGP signature
Re: escaping characters
This is related to what ttn said, but I am a bit confused by the request. Normally when you read *in* something like LaTeX source, you convert \\ to \, and similar things. Then when you write *out* LaTeX source, you might convert \ to \\. This is useful if, for instance, you want Guile to automatically generate some LaTeX and then write it in a form that TeX will read. Kejia seems to be asking for the opposite. I certainly agree that it would be useful to have a general function for this (and the reverse). Noah On Thu, Nov 1, 2012 at 2:14 PM, Thien-Thi Nguyen wrote: > > () Kejia柯嘉 > () Thu, 1 Nov 2012 10:24:52 -0400 > >for an example, when a program reads in a latex source, is there an >escape function that can rewrite all `\' to `\\', `"' to `\"', and so >on? > > This kind of escaping for backslash and double-quote (and other chars, > depending on Guile flavor) is built-in for ‘(object->string STRING)’, > but anything else (the "and so on" bit) you have to define for yourself, > or find something already defined. > > For example, Guile-BAUX provides module ‘(guile-baux write-string)’ > which exports proc ‘write-string’ that handles twelve additional > characters: > > > http://www.gnuvola.org/software/guile-baux/guile-baux.html.gz#write_002dstring > > Another example is Guile-PG module ‘(database postgres-qcons)’, which > has all manner of procs to DTRT for various "and so on" cases: > > http://www.nongnu.org/guile-pg/doc/qcons-quoting.html#qcons-quoting > > I think it would be nice for these procs (and perhaps your LaTeX > oriented one, once defined) to be rebased onto a general one, hosted > apart from any particular Guile version (perhaps Guile-Lib -- is that > project still viable?). > > Or maybe i'm missing something already out there by now. I remember > fruitlessly searching a number of years back, but things may have > changed since then. Here's some related discussion: > > http://lists.gnu.org/archive/html/guile-user/2012-01/msg00114.html > > [cc trimmed] > > -- > Thien-Thi Nguyen . GPG key: 4C807502 > . NB: ttn at glug dot org is not me . > . (and has not been since 2007 or so) . > .ACCEPT NO SUBSTITUTES . > ... please send technical questions to mailing lists ... > >
how to decode uri containing non-ascii characters?
hi all, in an html textarea, i input some chinese text, and receive the text from the http request body. i tried to use uri-decode to restore the text, but failed: (display (uri-decode "%E5%B0%8F")) any suggestions? thanks a lot for your helps. kejia ☵☯☲
Re: how to decode uri containing non-ascii characters?
On Thu, 2012-11-01 at 20:03 -0400, Kejia柯嘉 wrote: > hi all, > > in an html textarea, i input some chinese text, and receive the text from > the http request body. i tried to use uri-decode to restore the text, but > failed: > (display (uri-decode "%E5%B0%8F")) > It's OK in my system. --cut--- scheme@(guile-user)> (display (uri-decode "%E5%B0%8F")) 小scheme@(guile-user)> --end--- Can you show the error message? > any suggestions? > > thanks a lot for your helps. > > kejia > > ☵☯☲
