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index.md - sites - public wiki contents of suckless.org |
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index.md (2254B) |
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1 Setting rules in config.h |
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2 ========================= |
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3 |
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4 What does '`rules`' do? |
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5 ----------------------- |
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6 The `rules` array allows treating of certain applications (clients) uniq… |
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7 A rule has a matching and an action part. When a new client appears (sen… |
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8 maprequest), it is matched against the rules based on its class, instance |
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9 (`WM_CLASS`) and title (`WM_NAME`) properties and then the given tag and |
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10 floating mode setting actions are performed. The default tag mask is `0`… |
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11 means the currently viewed tags and the default mode is tiled so isfloat… |
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12 `False` or `0`. |
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13 |
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14 Example from the default config: |
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15 |
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16 static Rule rules[] = { |
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17 /* class instance title tags mask isfl… |
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18 { "Gimp", NULL, NULL, 0, 1, … |
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19 { "Firefox", NULL, NULL, 1 << 8, 1, … |
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20 { "deadbeef", NULL, NULL, 1 << 7, 0 … |
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21 }; |
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22 |
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23 These rules make every Gimp and Firefox window floating and makes Firefox |
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24 windows appear on tag 9 instead of the currently viewed tags. |
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25 deadbeef similarly displays its window on tag 8 for a secondary display |
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26 monitor. |
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27 |
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28 How does the matching work? |
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29 --------------------------- |
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30 A client is matched if its properties contain the given strings as subst… |
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31 (case-sensitively) or `NULL` is given (which means anything is matched t… |
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32 |
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33 More than one rule can be applied to a client, the rules are matched in … |
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34 |
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35 How to check these properties of a client? |
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36 ------------------------------------------ |
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37 The `xprop` utility can be used to get this information: |
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38 `WM_CLASS` is (instance, class) `WM_NAME` (or `_NET_WM_NAME`) is the tit… |
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39 |
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40 For example this shell script prints the relevant properties of the sele… |
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41 client (if the properties does not contain '`=`' or '`,`'): |
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42 |
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43 xprop | awk ' |
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44 /^WM_CLASS/{sub(/.* =/, "instance:"); sub(/,/, "\nclass:… |
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45 /^WM_NAME/{sub(/.* =/, "title:"); print}' |
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46 |
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47 How to add exception to a tagging rule? |
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48 --------------------------------------- |
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49 It cannot be simply done. For example it is difficult to achieve that ea… |
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50 Firefox window goes to tag 9 except one specific dialog, which goes to t… |
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51 because the tag masks of different matched rules are 'or'ed (and not ove… |
