World: r3wp
[Parse] Discussion of PARSE dialect
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Graham 27-Jun-2006 [963] | pattern search on capitals, mark, copy to space, mark, count length of copy, if long, insert at mark2, and then at mark1, continue ?? |
Gordon 27-Jun-2006 [964] | I agree - a bit much to ask. A more specific question would get a more specific answer :) Something like: file: read filename2parse newfile: "" Foreach word file [ if Is-Capitals Word [ newfile: join newfile ["<strong> " word " </strong> "] ] The Is-Capitals function would have to be defined Is-Capitals func [Word2Check] [ some code here ] |
Graham 27-Jun-2006 [965x2] | that won't work because file is just text and not a block. |
but my brain is gradually waking up now ... all I need to do is get dressed! | |
Pekr 27-Jun-2006 [967] | :-) |
Volker 27-Jun-2006 [968] | ;thinking loud: capitals: charset["#"A" - #"Z"] capital: [5 capitals any capitals] |
Henrik 27-Jun-2006 [969] | can you do this in one pass? |
Gordon 27-Jun-2006 [970] | .Yes "Newfile would have to be "parsed" into words something like: Newfile: parse file or file: parse/with file {separator character} |
Graham 27-Jun-2006 [971x3] | troubel is, parse doesn't only just parse on " " if specified ... |
so, you might lose other characters. | |
I think this can be done in one pass. | |
Pekr 27-Jun-2006 [974] | I would not rely on parse helpers, as parse string delimiter, but use full parse/all, if you need precise result ... |
BrianH 27-Jun-2006 [975] | Yes, give me a minute... |
JaimeVargas 27-Jun-2006 [976x2] | capitalize-word: func [ s [string!] /local len ][ either 5 < len: length? s [ s: rejoin ["<strong>" uppercase s/1 next s </strong>] ][ s ] ] capitalize-text: func [ s [string!] /local result word-rule alpha non-alpha w c ][ result: copy {} alpha: charset [#"A" - #"Z" #"a" - #"z"] non-alpha: complement alpha word-rule: [copy w [some alpha] (insert tail result capitalize-word w)] other-rule: [copy c non-alpha (insert tail result c)] parse/all s [some [word-rule | other-rule] end] result ] |
>> capitalize-text {The result changes according to formating.} ; == {The <strong>Result</strong> <strong>Changes</strong> <strong>According</strong> to <strong>Formating</strong>.} | |
Graham 27-Jun-2006 [978x2] | Not quite the problem I was stating! |
search for a series of capitalised words and strong them | |
JaimeVargas 27-Jun-2006 [980] | Ah. Very easy modification. |
Graham 27-Jun-2006 [981x2] | bolden-word: func [ s [string!] /local len ][ either 5 < len: length? s [ s: rejoin ["<strong>" s </strong>] ][ s ] ] enhance-text: func [ s [string!] /local result word-rule alpha non-alpha w c ][ result: copy {} alpha: charset [#"A" - #"Z"] non-alpha: complement alpha word-rule: [copy w [some alpha] (insert tail result bolden-word w)] other-rule: [copy c non-alpha (insert tail result c)] parse/all s [some [word-rule | other-rule] end] result ] |
Thanks Jaime. | |
BrianH 27-Jun-2006 [983x2] | capitals: charset ["#"A" - #"Z"] alpha: charset ["#"A" - #"Z" #"a" - #"z"] non-alpha: complement alpha parse/all/case [any non-alpha any [ a: 5 capitals any capitals b: non-alpha ( b: change/part a rejoin ["<strong>" copy/part a b "</strong>"] b ) :b | some alpha any non-alpha ] to end] |
This is the Parse group after all. | |
Graham 27-Jun-2006 [985] | ohhhh... shorter :) |
BrianH 27-Jun-2006 [986] | ; A few fixes capitals: charset ["#"A" - #"Z"] alpha: charset ["#"A" - #"Z" #"a" - #"z"] non-alpha: complement alpha parse/all/case [any non-alpha any [ a: 5 capitals any capitals b: [non-alpha | end] ( b: change/part a rejoin ["<strong>" copy/part a b "</strong>"] b ) :b | some alpha any non-alpha ] to end] |
Graham 27-Jun-2006 [987] | capitals: charset ["#"A" - #"Z"] ... remove leading " |
JaimeVargas 27-Jun-2006 [988] | I think I missunderstood the problem. I thought the the emphasis was not for words all in uppercase. Just ther first char. |
Graham 27-Jun-2006 [989] | Yeah ... it was a way to mark up text wherever a sequence of CAPS occurs |
JaimeVargas 27-Jun-2006 [990] | Any how you got the idea. This type of problem could actually use the rewrite rules engine from gabriele. The principle is the same. |
BrianH 27-Jun-2006 [991] | ; Sorry, more fixes capitals: charset ["#"A" - #"Z"] alpha: charset ["#"A" - #"Z" #"a" - #"z"] non-alpha: complement alpha parse/all/case [any [ any non-alpha a: 5 capitals any capitals b: [non-alpha | end] ( b: change/part a rejoin ["<strong>" copy/part a b "</strong>"] b ) :b | some alpha ] to end] |
Graham 27-Jun-2006 [992x2] | Brian ... your rules are incorrect. |
you have extra " in the charset defiitions | |
BrianH 27-Jun-2006 [994] | Right. I was running this in my head, as I don't have test data. REBOL usually catches syntax errors :) |
Graham 27-Jun-2006 [995] | Actually I would like to add a parse problem to the weeklyblog and get people to submit answers :) |
BrianH 27-Jun-2006 [996] | I use parse quite a bit. It's funny, I've never needed the GUI of View, but I use parse daily. |
Graham 27-Jun-2006 [997x2] | And give a prize for the shortest answer |
say a copy of Microsoft VB :) | |
BrianH 27-Jun-2006 [999] | By shortest, go for most efficient. Otherwise variable naming becomes an issue. |
JaimeVargas 27-Jun-2006 [1000] | Shorter may not be clearer or abstract enough. I prefer the something that can become an API an reused. But we will need to exclude the rewrite-rule of Gabriel. ;-) |
BrianH 27-Jun-2006 [1001] | Hey, I worked on those rules, they're pretty good :) |
Graham 27-Jun-2006 [1002] | shortest .. I mean the least number of words, and operators - not in length |
JaimeVargas 27-Jun-2006 [1003] | Hahaha, no offense Brian. ;-) |
Graham 27-Jun-2006 [1004] | Can't use this problem though .. this group is web public! |
BrianH 27-Jun-2006 [1005] | It's too simple anyways. |
Graham 27-Jun-2006 [1006x2] | I am hoping that it will be instructive ... as well. |
so simple things are good to start with ... we can have harder ones once we see how people respond | |
BrianH 27-Jun-2006 [1008] | Seriously though, three charsets and two temporary variables, there's got to be a more efficient way. |
Volker 27-Jun-2006 [1009] | should non-alpha be non-captitals? (running in head too) |
BrianH 27-Jun-2006 [1010x2] | ; Sorry, more fixes capitals: charset [#"A" - #"Z"] alpha: charset [#"A" - #"Z" #"a" - #"z"] non-alpha: complement alpha parse/all/case [any [to alpha [ a: 5 capitals any capitals b: [non-alpha | end] ( b: change/part a rejoin ["<strong>" copy/part a b "</strong>"] b ) :b | some alpha ]] to end] |
No, because that would allow words like this: ABCDEFghij | |
Volker 27-Jun-2006 [1012] | it would collect as long as there are capitals? |
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