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Regexp help

Posted: Sun Feb 12, 2012 11:52 pm
by jomtones
Pulling my hair out trying to do simple stuff here with regexp. Can anyone tell me why this patch ain't working? I just want the regexp to pull the last number from a scene and set that as the 'scene loop length'. It's for a device that launches scenes relative to a master scene - I'm now trying to add a bit to allow my drummer to 'step through' a loop of scenes with one drum pad.

Code: Select all

<pre><code>
----------begin_max5_patcher----------
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-----------end_max5_patcher-----------
</code></pre>
NB. Initial thread here: http://cycling74.com/forums/topic.php?id=38050

Re: Regexp help

Posted: Mon Feb 13, 2012 12:13 am
by jomtones
Darn, I just realised I have a more tricky regexp to write... basically it needs to do this:

IF scene has 'mstr' in the label, THEN Get scene 'loop length' from last numbers in scene label.

Is something like this possible?

Patch so far:

Code: Select all

<pre><code>
----------begin_max5_patcher----------
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ljdRq2CCqm6jj6B+K+f27nTu2kirWO8iQWWNXVJC9dWLJOChBnsYezQkQA8S
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dBYRP9PZpvWVGhuE1CvQsilA0CiL7zwV.ZW1gZvT.IpG3GSYvm0cP60yc31f
safevzUUrTR57mag7nzDTcstDo+isYKiA79BMkx+RfenxbXHd3xu.EfVRz8w
SVJJEAXvXimyodIo9gqRK0mV681lW4c9SmtQFffj1McQTl0SEB49zLeukeac
ke7Io3aoq3yNIEetthO8jT7YZ23mbRJ+4nJRK424jT9I5J+1aegmHhuVMe3M
E8IDd9jmg.SEULuvk5xeBULU2bf0eOyd0JH6v7Pmm.a8UZmds4PZOhm0oq7i
zcHiSuNMHsGw9zjyBYqMoK5zTAn+ndlmlZ.s4cwmncgwZ2D5DkCEoqF3zztI
YMrUn.NMcaPa7G089Mr7DqmxkZuxB18zVbVPzX2fh4T51kchQ6Z5LpyTdr1Y
UobwZyK+.VC0l3FDXbqerz0niUCmt5P59oPBXnNmAKQmxwTVZ3EaDBwPEqCb
mls9bZDD8Xbs4vaWCQ5SlkliSCAJnRuRg0WxSvElCoU3FoXMr93Xc4rvMzSZ
uLKTcKsenrXJZcTTOfMqTPfkgPDyhxfFunl8k+WRkZlvVkDqMKiBbGJBIR4w
1uqCKiBG.HEORqZYATFUv3UEN95vTQZCXPYWgfVVbkO8wT31VMgBEX7lljtD
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HR9K1HzpO0IhsVci48BhZSzQ1H8CEisNxFqW5Cqk6S39wAEcDsdxrKsb.n2D
MjNn1wusFQqAyH8SqMhdDH3dA4v5MdQ+fbXsBOT+LNqdNC2SBmVcG5G6NQZo
T2XVBbzDNjNcU6mnpg0xnX5dajjCilaKGCJPQN70epaDa7gQrQlHV+K2nlJ1
EaTpbrypOcDakfZXiDNgVVpy+T2H0ZExj9wcOrVL8j9gvhnEgEoeLJCocDF5
IfC28ieisIvdYFTt2JlY0cFqjVVqQ26NJVXQ+ZJU7hC15R6hMGFZW0EWHT0B
339oajP3H0Jb8jUvZEY178vaC1wueDUagy43Kb5ibVGegyVagy93KbbsEN9w
2Jc8QN5wW3zG4HGe0po1BWODJB8QtdfDVOjqehLGV+ND3i+XqH8ay0Ci7q+3
WnieWBJVeoqGzr6AaxwmqSuYHU+3SISuI9F+DV3n8STvnVZkwq16FQ9Axd4+
C0fwMRC
-----------end_max5_patcher-----------
</code></pre>

Re: Regexp help

Posted: Mon Feb 13, 2012 12:21 am
by Machinate
you can do stuff like this with "route" and "unpack", really.

The trick is that if you can't describe the process with a single object, do it in a couple.

Now, we probably don't all need to run your entire patch to help you parse this - could you replace the inputs from Live with just message boxes with the messages in them? Strip it way down so that it's more easily readable?

Re: Regexp help

Posted: Mon Feb 13, 2012 12:36 am
by jomtones
Ok sure here's just my current problem bit, with the type of title I have for a 'master' scene and a normal scene, both with numbers at the end.

Plus the regexp bit I don't know how to write! :|

Code: Select all

<pre><code>
----------begin_max5_patcher----------
1235.3oc2Ys0aaaCF8YWf9efvujsAGCQRIao9RP2PV2.RSGv1aYAAxVL1bSh
TPhNMcE6+93MKIaSYEG6T6r.Dcgj5iGd9tR5u912zq+D9ijx9f2AtAzq2Wks
zS2lpkdKanW+r3GmlFWpGXeF4y7I+U+A19DjGE51yKH4DVBnjHp5jln6RN9y
CfUsdOmIXwYDceuufFmB9QdZRU+4whoyorY2UPlJLfyGOZn2..zCptMZr9kv
gdfaW9QrEYTVJQnAIrQq7EhMZVgfR5+nQ.zSJLa6lwJ9RNwLs86CtU20+912
ntKuM3ISTS4YYDlXSlB54jfFUS.EjR4WFKnbVCR.h7zqanlDvQaRBOGlcjgY
QZw4GroPmLaJOkWXwft+lWpGXSXutVnSciWa5lCO+e0m9zuAt5xq+ve7KtTD
9AcoHrTODotEBOH5g.HVKGrVbgi1TnuVn2OHmRP4TBi.NKkyyAoD1Lw7y.2W
vy.xuW.jXaBonDPY1ApHqAfe8msuNOtDbVVon3L0PDyMCnZpRoLxT9Bld9vt
7kP6SvFbn1K.YTHi0pBe3SvkvanePXHxeM+hii9os3zkfyO+bkdwnVb5ADtE
5a6goMQlGoCTEpeQEz5PvEn5vzMHeugnwg9Xnh7iPvfQQpmFgkOOxpFN3LXA
YF4wbvEWbgSxa7dY6E4qHswlq3mWdtfcOO2f09eOnsLRYY7Lxl7FiWjIo.iK
NLvE4gdlFdHOShK80nnNnMztTd.5Ep7fVooGjQFI.UzOY1.uI4YfqfHWjErq
7THrNCEJzDbxbYOyRUSyPDx3reX34u4kg86+zkWeI352+wKemy5wF2I8Zs4B
OfkA3G0L.p+IeU.sZE6rFWz9kW1yTUDVSNRa6fSequV4GnS9Yu1jDxV89qI9
Ik9.YnlTVJ9GhKpV2U8dC7Vm4Zq2yT7BAOqxqn+GkkYRJ5bGU13Y3vgvHXTf
rjg.G9b0x1JcSlrspKBr6jRmBOXWbjUqW2qB2t34wER9RNt6Hr3IojMDlKHu
pNGs8BCpAcY7Cjj6hEhB5jEBR8SkVk7RsrROltfvueY6UczDvY7Do0fIM63J
KrUFRJmMaq1CaHPpl67ZQbT1eqD2JT3FhfmPZFtbk9or64Zv3D.KXTCk5tad
QBonIiuRuIj6M85bhKyIjjTZlF4tWcRqk7xVE.Qpzsp0kFVU1EUp3U+hGy4L
hYeVsLkT1CzRp0ryqUJQ7EqgoygDyXbqyYkt1s9co4havjsckOUhDUgj1cN3
4dQuz5GsEQzvUyshXNuProYae6PsQJqe3EX6IpBHcFyD+bqwVF+BO1GK2gUD
pd6I6996bu8D3vfn.X33uI6Qo8yFxco1ggclJwKrQ0fQgGjpAwFwL1TTXf2+
eNbtNLd+S4ekW7cpae9G9dmZD79TpDTWIYj1.NB9ZbW1OyigGGze+sGMEXdL
OEdyLpOHv0+4KzvV0wZrWIeQwzkRb4A0.f0XOgTJnrJGjap+cK.MVgyoIID1
JNEYzjbNkIrHYaJ0mL3VeZcCN0A0cxBN0OnwQ.bnmDwgOcwV3wAavSXdCdBy
aZJA2E3PniG3PcBtiSLNzSyUcmCifgAli9PmsBMxu5sCCrguLvFE3+RBas6Q
mo6T0GbDLEVeZawCe+S2oZPd6+vLo4kL
-----------end_max5_patcher-----------
</code></pre>

Re: Regexp help

Posted: Mon Feb 13, 2012 1:13 am
by toscanini
Shelluser wrote pretty exhaustive tutorials about regexp, you should check those out

Re: Regexp help

Posted: Mon Feb 13, 2012 1:20 am
by Machinate
also, this needs very little regexp in the first place ;) And the main reason you'd even need regexp for this (the last part with the "L12" is because of a naming convention that I suspect OP introduced him-/herself?

Anyway, this is one variety of it.

<pre><code>
----------begin_max5_patcher----------
1297.3oc0Y00bhaCE8Y3WgFdIuP7X8k+XepocR21Yxlsyz9TSyjw.Jf2ZKyX
IRS2c1+60RxFLfswlPbgYR.aYgtGctWcuGI+sgCFMI4UlXD3CfG.CF7sgCFn
aR0vf76GLJN30oQABc2FEyDhf4rQiMOSxdUpaGhJZhuJNjGwj59ixabYfb5h
P97mRYSkF6gvXKOWB1eLffrsrGCn5OgdV1fGy+cgyzidxjubMhTXgmS3RdPL
S+naRCChJY6jUxBiCya0zj7eWxLVdzn0iuZnDgeU+.HxxV052GNT8w3VxHb1
+jAu8HjT1b1qKAOby0+4ifePrZhPFJWIYf+ZT1eURVvFHKGRAYgINZZh5q9R
wbUxV1cksn0xVi24+SI6MMINlwk6Qe+9Oc682Bt+lOc6G5JWgsQZlwSGN4Q1
KnZYJSjYy.YXBu7XUh9nt0SefeLIZV0bncUDiBF6a3R.lRMPzSiW3F7dB4y6
pYAZwbex7oIQIoF.YfP4O1vcUDa5q6Ex22DWZeLDtmWOR3PrWIF226Mw30r9
OyzKY7Y.AS14E64DpgIcbaJqHldT7VWSMZeTKtqqXwcGnZw9Ai1VDOhqGQeE
AhwGNpbS4EjIGPykWbunpt70H.aZXj..6bYWjyZdwvHT2lJjP6JufZrNROvM
yCjr2BqfzQKXRSrxkkVDIHBD04rPDXAkXjZfQVz5YD7EWbxaHCctDCBx4vYn
ovy3Lz0IW38Ss.FanNJw70QoNyoWEKXvnwWi8eejm84O+af6t89O9G+RmiEc
8MLoFedNGCgRn8obWihbj66nb2OlgPfXJiy.WEkjrDDw3ykKtB7bZRLH6mKA
YSkIrTAHjm2Q0zdL3W+47aWDH.WEKjoWo5hbgoCEVJJjyllrhqMG9HVqjoig
54gHGbACwVWkNWxpq1+Rf0jqAcR8imtbsBv0WesxQX7CGa9VOrNloQAKDutV
IpX5WxOYagxTahgJ+jOBRc7UW4fyt1YaO1In9Tcxj4IowY9MS3Hj1YMMaJfi
LazwuwyW47TRScjyKYqcY.05yrLz1SVFCtq6mAkiImtYiAHcLFzoZ5AdAtOK
6txGXhdAV99iMB9piPPnKPFo6aWxC0dF4bNFIJ7ElklGxGyWBRWCw0O7A3iE
OOXkLIVW61HaHOcTmScmGR4a1Cd6OMtcRCNphL8NMuyhkAoYSPIK8IFOXRDq
YxdqccnLd9z9SYhEXo6yJU7v5TP5jehsXKnOzm5TIOHBdgM6o.oLMbxJIayU
hbuZtaU44hVwRdtn4h1KOgSRmwRKwEa8vnD97lb86PcqhyonhI6ZWRA125GD
mE1oY5Bcfa8zPdnTUQIuJqckCQl3p+VAvxwVa0gB+VUyNwhjT49SuQldpW0T
70I8j9Ukh57droTKroDMzHyyE2n1Fbeep9PKpOE54VhtzcTK.dm2bjdBpZea
NTjrJcZgYyORI.bs4lwDxP95kTOr48W.1vAKBmMiwKKVaVnPslVyMUmOrsvY
GSUCdHaA5+2wi5TE5I9oMtK0wP2SvYGSUMdTuNgdBOj13sNqbVt8VnLtEbSO
tvB0R3zS4cfmUvA2hHGBt+XmVPN8GZfmUnocQNNG.OwgyVlDxkhMu0Q55SXB
SQquaig54khcbFTFyu6y.8RAzgTMzeUo03AeH7f5uBQsIFk5bdgGxwJavnIN
X4R0wRkOlZnjsChuXNTQmw5aC4la0iX1dGdIrn+3gpQ66C+O.nMrp3C
-----------end_max5_patcher-----------
</code></pre>

Re: Regexp help

Posted: Mon Feb 13, 2012 5:15 pm
by jomtones
Thanks so much for that - it works great in the edit window but for some reason doesn't seem to work properly in the project!

If I click on a scene labelled e.g. "newsong mstr 65bpm L22"

I see the loop length coming out as "newsong mstr 65bpm 22"

- but if I send this through in a locked Max window I get "22" as expected!

Try pasting that label into a scene, then click on the scene to test it ... for some reason it sometimes needs a click on the buttons to get going ... :)

The 'L' at the end was just to remind me it's 'LOOP LENGTH' there 8)

Code: Select all

<pre><code>
----------begin_max5_patcher----------
4720.3oc6c01iahjs9yYj1+CHqqz7goSq58pXjFoat6z2YiTR1UYh1OrIQQt
so6lcvfkAmIyt5d+suPcv1f6BSY.CtcynLssAL9vScpmya0K+6+z28hI2F8M
u3IN+nyGcdwK92oG4E5ikcjWr4.uXxhoeaVvzX8ENYVzhEdgIStJ+jIdeKQe
hed05zyrxwOb45cm1et9jQ29OeISt8n2EElDNcgm9buZk+z.m+mnf4aO+xoI
ydvO79urxaVBHeXW10nqbvbd1KJp9CpqQNedyW516mEEDsJ+xyNO5ZWhKCSx
dGEwUJ86jtDLWt66EtdgeXfWh94CW3nQqS1bXTQIO1+eokbL5Zj9v+e+ouK6
0zWtxZbLz62SAkGCiqbd4Ke4Mgy+0YdgdFgQwAfwCgfDjFzHRoFA03HAUDAK
gDHyHA1HRPtd6kWnQ.cMglB1hLTWvnXpTi+HWEhcUVSzteZ3WH4OV5Ae0ISb
9biw1J0Q+Ii.JeGpsxKN8KNMwOJr.xQyU2HZjCKertWCTnItnr6ifnzMD7Ge
SKJM6qaN.ZrUhpKCVGaDXo0ArLPkT5l8WNtSvUNR.2MM7xbO6w0pXB9AGrIT
kxaCMpfpADASiNbx078QmRf.4XHAP6HAdT2Y+TEmSQO5e8Oey6tw4cu5s27i
l.KgpNUPcuOLnln5FMPWftfigaJ6oaO6OMYQbxJGLEc6xENuAi9zDinracnr
KAfYf5Dg5FbVpuqbJzFxQ13SPo+7jiSHULW5EN2I1ynKVxVwMjimLEPQXvLm
MfwwyMbRHFR7hSbx9xFfIBoUvDUq9PEUq1MLJMYO6dy8M.FE6E+pWgQ6TSB7
C8lEsNLoDaeQrB2JrBoAIpRTniOGcrXE630otBr4bE711nhsvKNd58dFXG+T
Y9wT5wOUffrDzRMQaRZnm7RA6ZkjQcSstHHafzzdthtwPN4D0YsxXd7t26aK
c93qd4+3yN+2wquMNwOYchmyml3TgEGZSgNW9FnSpx6.6VSjPUnTxOdr6p89
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Bb7l4GDa16coro.KWtEXAGd3xZzaq.lHMSu8D.U2OMwXJNjpN.jzOQNTVy.o
yCcoDm.m.iHjaSQnTe7xQHF3MNUGC3wS+c9nFUiSwJTa7fQQ0Ayo.u8dh6T7
i7WwnwUEttv4HB.T.WeohNIbNU9M0EvXh6kS3bU1f7l+5e8u47lad2u7g+hw
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mzuehSprcq2pXG+v7KLCrtx40+u4e7gowNeeVuluO6RRd.t.6cxWwZU7Sfyo
BfDBK0sELrE8IRciJqfGrC4G0fmNi3rhcj0v.sKF6BvankNEjOYEvNojMyIe
zwUtiTOXoXnvSXtvUW3i7RfnaF5d28QFAM2VYxSxfjCK14e.Vb5yQ7IIbHid
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VyT49HPvWicwt7z9CbC4Ee28N+tGFsZQMcyyUVAKf7iIY6YOvleJLyLrb5pT
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-----------end_max5_patcher-----------
</code></pre>

Re: Regexp help

Posted: Tue Feb 14, 2012 10:46 am
by broc
Your patch doesn't work as expected because in M4L the scene name is actually a symbol (not a list).
So before applying 'zl ecils 1' you'd need conversion to a list using 'fromsymbol'.

Re: Regexp help

Posted: Tue Feb 14, 2012 3:07 pm
by jomtones
broc wrote:Your patch doesn't work as expected because in M4L the scene name is actually a symbol (not a list).
So before applying 'zl ecils 1' you'd need conversion to a list using 'fromsymbol'.
Thanks Broc I'll check that out. :D

Re: Regexp help

Posted: Tue Feb 14, 2012 5:47 pm
by jomtones
In the end I went for a system that would just look for 'mstr' in the next scene and then loop on the next 'scene advance' command... it's not quite as dependable if I use my MIDI controller but its seamless for my drummer to loop through scenes, so it'll do for now.

What it could really do with is something that looks ahead x scenes, spots the next master scene, and then sets a loop length based on that. But no way I know how to write that one! This'll do for now - working code! :D

Here's the current version in case it's useful to anyone:

<pre><code>
----------begin_max5_patcher----------
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-----------end_max5_patcher-----------
</code></pre>