From f173ec04e383a601dc7ca3bbbdacd6beae372d0a Mon Sep 17 00:00:00 2001
From: elkowar <5300871+elkowar@users.noreply.github.com>
Date: Sat, 19 Sep 2020 17:10:52 +0200
Subject: [PATCH] there was an attempt at variable intrepolation support

---
 Cargo.lock        | 815 +---------------------------------------------
 Cargo.toml        |   9 +-
 src/config/mod.rs |  38 +--
 src/main.rs       |  93 +++++-
 4 files changed, 100 insertions(+), 855 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 08ad779..610d646 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -76,30 +76,12 @@ dependencies = [
  "rustc-demangle",
 ]
 
-[[package]]
-name = "base64"
-version = "0.12.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3441f0f7b02788e948e47f457ca01f1d7e6d92c693bc132c22b087d3141c03ff"
-
 [[package]]
 name = "bitflags"
 version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
 
-[[package]]
-name = "bumpalo"
-version = "3.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2e8c087f005730276d1096a652e92a8bacee2e2472bcc9715a74d2bec38b5820"
-
-[[package]]
-name = "bytes"
-version = "0.5.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e4cec68f03f32e44924783795810fa50a7035d8c8ebe78580ad7e6c703fba38"
-
 [[package]]
 name = "cairo-rs"
 version = "0.9.1"
@@ -138,28 +120,6 @@ version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 
-[[package]]
-name = "core-foundation"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "57d24c7a13c43e870e37c1556b74555437870a04514f7685f5b354e090567171"
-dependencies = [
- "core-foundation-sys",
- "libc",
-]
-
-[[package]]
-name = "core-foundation-sys"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b3a71ab494c0b5b860bdc8407ae08978052417070c2ced38573a9157ad75b8ac"
-
-[[package]]
-name = "dtoa"
-version = "0.4.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "134951f4028bdadb9b84baf4232681efbf277da25144b9b0ad65df75946c422b"
-
 [[package]]
 name = "either"
 version = "1.6.0"
@@ -230,15 +190,6 @@ version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a246d82be1c9d791c5dfde9a2bd045fc3cbba3fa2b11ad558f27d01712f00569"
 
-[[package]]
-name = "encoding_rs"
-version = "0.8.24"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a51b8cf747471cb9499b6d59e59b0444f4c90eba8968c4e44874e92b5b64ace2"
-dependencies = [
- "cfg-if",
-]
-
 [[package]]
 name = "eww"
 version = "0.1.0"
@@ -248,6 +199,7 @@ dependencies = [
  "gio",
  "gtk",
  "hocon",
+ "regex",
  "try_match",
 ]
 
@@ -273,43 +225,6 @@ dependencies = [
  "synstructure",
 ]
 
-[[package]]
-name = "fnv"
-version = "1.0.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
-
-[[package]]
-name = "foreign-types"
-version = "0.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
-dependencies = [
- "foreign-types-shared",
-]
-
-[[package]]
-name = "foreign-types-shared"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
-
-[[package]]
-name = "fuchsia-zircon"
-version = "0.3.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2e9763c69ebaae630ba35f74888db465e49e259ba1bc0eda7d06f4a067615d82"
-dependencies = [
- "bitflags",
- "fuchsia-zircon-sys",
-]
-
-[[package]]
-name = "fuchsia-zircon-sys"
-version = "0.3.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3dcaa9ae7725d12cdb85b3ad99a434db70b468c09ded17e012d86b5c1010f7a7"
-
 [[package]]
 name = "futures"
 version = "0.3.5"
@@ -478,7 +393,7 @@ checksum = "fc587bc0ec293155d5bfa6b9891ec18a1e330c234f896ea47fbada4cadbe47e6"
 dependencies = [
  "cfg-if",
  "libc",
- "wasi 0.9.0+wasi-snapshot-preview1",
+ "wasi",
 ]
 
 [[package]]
@@ -622,31 +537,6 @@ dependencies = [
  "system-deps",
 ]
 
-[[package]]
-name = "h2"
-version = "0.2.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "993f9e0baeed60001cf565546b0d3dbe6a6ad23f2bd31644a133c641eccf6d53"
-dependencies = [
- "bytes",
- "fnv",
- "futures-core",
- "futures-sink",
- "futures-util",
- "http",
- "indexmap",
- "slab",
- "tokio",
- "tokio-util",
- "tracing",
-]
-
-[[package]]
-name = "hashbrown"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "00d63df3d41950fb462ed38308eea019113ad1508da725bbedcd0fa5a85ef5f7"
-
 [[package]]
 name = "heck"
 version = "0.3.1"
@@ -656,15 +546,6 @@ dependencies = [
  "unicode-segmentation",
 ]
 
-[[package]]
-name = "hermit-abi"
-version = "0.1.15"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3deed196b6e7f9e44a2ae8d94225d80302d81208b1bb673fd21fe634645c85a9"
-dependencies = [
- "libc",
-]
-
 [[package]]
 name = "hocon"
 version = "0.3.5"
@@ -675,111 +556,10 @@ dependencies = [
  "java-properties",
  "memchr",
  "nom",
- "reqwest",
  "serde",
  "uuid",
 ]
 
-[[package]]
-name = "http"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28d569972648b2c512421b5f2a405ad6ac9666547189d0c5477a3f200f3e02f9"
-dependencies = [
- "bytes",
- "fnv",
- "itoa",
-]
-
-[[package]]
-name = "http-body"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "13d5ff830006f7646652e057693569bfe0d51760c0085a071769d142a205111b"
-dependencies = [
- "bytes",
- "http",
-]
-
-[[package]]
-name = "httparse"
-version = "1.3.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cd179ae861f0c2e53da70d892f5f3029f9594be0c41dc5269cd371691b1dc2f9"
-
-[[package]]
-name = "hyper"
-version = "0.13.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3e68a8dd9716185d9e64ea473ea6ef63529252e3e27623295a0378a19665d5eb"
-dependencies = [
- "bytes",
- "futures-channel",
- "futures-core",
- "futures-util",
- "h2",
- "http",
- "http-body",
- "httparse",
- "itoa",
- "pin-project",
- "socket2",
- "time",
- "tokio",
- "tower-service",
- "tracing",
- "want",
-]
-
-[[package]]
-name = "hyper-tls"
-version = "0.4.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d979acc56dcb5b8dddba3917601745e877576475aa046df3226eabdecef78eed"
-dependencies = [
- "bytes",
- "hyper",
- "native-tls",
- "tokio",
- "tokio-tls",
-]
-
-[[package]]
-name = "idna"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02e2673c30ee86b5b96a9cb52ad15718aa1f966f5ab9ad54a8b95d5ca33120a9"
-dependencies = [
- "matches",
- "unicode-bidi",
- "unicode-normalization",
-]
-
-[[package]]
-name = "indexmap"
-version = "1.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "55e2e4c765aa53a0424761bf9f41aa7a6ac1efa87238f59560640e27fca028f2"
-dependencies = [
- "autocfg",
- "hashbrown",
-]
-
-[[package]]
-name = "iovec"
-version = "0.1.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2b3ea6ff95e175473f8ffe6a7eb7c00d054240321b84c57051175fe3c1e075e"
-dependencies = [
- "libc",
-]
-
-[[package]]
-name = "ipnet"
-version = "2.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "47be2f14c678be2fdcab04ab1171db51b2762ce6f0a8ee87c8dd4a04ed216135"
-
 [[package]]
 name = "itertools"
 version = "0.9.0"
@@ -789,12 +569,6 @@ dependencies = [
  "either",
 ]
 
-[[package]]
-name = "itoa"
-version = "0.4.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc6f3ad7b9d11a0c00842ff8de1b60ee58661048eb8049ed33c73594f359d7e6"
-
 [[package]]
 name = "java-properties"
 version = "1.2.0"
@@ -805,25 +579,6 @@ dependencies = [
  "regex",
 ]
 
-[[package]]
-name = "js-sys"
-version = "0.3.45"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca059e81d9486668f12d455a4ea6daa600bd408134cd17e3d3fb5a32d1f016f8"
-dependencies = [
- "wasm-bindgen",
-]
-
-[[package]]
-name = "kernel32-sys"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
-dependencies = [
- "winapi 0.2.8",
- "winapi-build",
-]
-
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -836,43 +591,12 @@ version = "0.2.77"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f2f96b10ec2560088a8e76961b00d47107b3a625fecb76dedb29ee7ccbf98235"
 
-[[package]]
-name = "log"
-version = "0.4.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4fabed175da42fed1fa0746b0ea71f412aa9d35e76e95e59b192c64b9dc2bf8b"
-dependencies = [
- "cfg-if",
-]
-
-[[package]]
-name = "matches"
-version = "0.1.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
-
 [[package]]
 name = "memchr"
 version = "2.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3728d817d99e5ac407411fa471ff9800a778d88a24685968b36824eaf4bee400"
 
-[[package]]
-name = "mime"
-version = "0.3.16"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2a60c7ce501c71e03a9c9c0d35b861413ae925bd979cc7a4e30d060069aaac8d"
-
-[[package]]
-name = "mime_guess"
-version = "2.0.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2684d4c2e97d99848d30b324b00c8fcc7e5c897b7cbb5819b09e7c90e8baf212"
-dependencies = [
- "mime",
- "unicase",
-]
-
 [[package]]
 name = "miniz_oxide"
 version = "0.4.2"
@@ -883,66 +607,6 @@ dependencies = [
  "autocfg",
 ]
 
-[[package]]
-name = "mio"
-version = "0.6.22"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fce347092656428bc8eaf6201042cb551b8d67855af7374542a92a0fbfcac430"
-dependencies = [
- "cfg-if",
- "fuchsia-zircon",
- "fuchsia-zircon-sys",
- "iovec",
- "kernel32-sys",
- "libc",
- "log",
- "miow",
- "net2",
- "slab",
- "winapi 0.2.8",
-]
-
-[[package]]
-name = "miow"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c1f2f3b1cf331de6896aabf6e9d55dca90356cc9960cca7eaaf408a355ae919"
-dependencies = [
- "kernel32-sys",
- "net2",
- "winapi 0.2.8",
- "ws2_32-sys",
-]
-
-[[package]]
-name = "native-tls"
-version = "0.2.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b0d88c06fe90d5ee94048ba40409ef1d9315d86f6f38c2efdaad4fb50c58b2d"
-dependencies = [
- "lazy_static",
- "libc",
- "log",
- "openssl",
- "openssl-probe",
- "openssl-sys",
- "schannel",
- "security-framework",
- "security-framework-sys",
- "tempfile",
-]
-
-[[package]]
-name = "net2"
-version = "0.2.35"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ebc3ec692ed7c9a255596c67808dee269f64655d8baf7b4f0638e51ba1d6853"
-dependencies = [
- "cfg-if",
- "libc",
- "winapi 0.3.9",
-]
-
 [[package]]
 name = "nom"
 version = "4.2.3"
@@ -953,16 +617,6 @@ dependencies = [
  "version_check 0.1.5",
 ]
 
-[[package]]
-name = "num_cpus"
-version = "1.13.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05499f3756671c15885fee9034446956fff3f243d6077b91e5767df161f766b3"
-dependencies = [
- "hermit-abi",
- "libc",
-]
-
 [[package]]
 name = "object"
 version = "0.20.0"
@@ -975,39 +629,6 @@ version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "260e51e7efe62b592207e9e13a68e43692a7a279171d6ba57abd208bf23645ad"
 
-[[package]]
-name = "openssl"
-version = "0.10.30"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d575eff3665419f9b83678ff2815858ad9d11567e082f5ac1814baba4e2bcb4"
-dependencies = [
- "bitflags",
- "cfg-if",
- "foreign-types",
- "lazy_static",
- "libc",
- "openssl-sys",
-]
-
-[[package]]
-name = "openssl-probe"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77af24da69f9d9341038eba93a073b1fdaaa1b788221b00a69bce9e762cb32de"
-
-[[package]]
-name = "openssl-sys"
-version = "0.9.58"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a842db4709b604f0fe5d1170ae3565899be2ad3d9cbc72dedc789ac0511f78de"
-dependencies = [
- "autocfg",
- "cc",
- "libc",
- "pkg-config",
- "vcpkg",
-]
-
 [[package]]
 name = "pango"
 version = "0.9.1"
@@ -1035,12 +656,6 @@ dependencies = [
  "system-deps",
 ]
 
-[[package]]
-name = "percent-encoding"
-version = "2.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
-
 [[package]]
 name = "pin-project"
 version = "0.4.23"
@@ -1061,12 +676,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "pin-project-lite"
-version = "0.1.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "282adbf10f2698a7a77f8e983a74b2d18176c19a7fd32a45446139ae7b02b715"
-
 [[package]]
 name = "pin-utils"
 version = "0.1.0"
@@ -1189,12 +798,6 @@ dependencies = [
  "rand_core",
 ]
 
-[[package]]
-name = "redox_syscall"
-version = "0.1.57"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"
-
 [[package]]
 name = "regex"
 version = "1.3.9"
@@ -1213,142 +816,24 @@ version = "0.6.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "26412eb97c6b088a6997e05f69403a802a92d520de2f8e63c2b65f9e0f47c4e8"
 
-[[package]]
-name = "remove_dir_all"
-version = "0.5.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3acd125665422973a33ac9d3dd2df85edad0f4ae9b00dafb1a05e43a9f5ef8e7"
-dependencies = [
- "winapi 0.3.9",
-]
-
-[[package]]
-name = "reqwest"
-version = "0.10.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e9eaa17ac5d7b838b7503d118fa16ad88f440498bf9ffe5424e621f93190d61e"
-dependencies = [
- "base64",
- "bytes",
- "encoding_rs",
- "futures-core",
- "futures-util",
- "http",
- "http-body",
- "hyper",
- "hyper-tls",
- "ipnet",
- "js-sys",
- "lazy_static",
- "log",
- "mime",
- "mime_guess",
- "native-tls",
- "percent-encoding",
- "pin-project-lite",
- "serde",
- "serde_urlencoded",
- "tokio",
- "tokio-tls",
- "url",
- "wasm-bindgen",
- "wasm-bindgen-futures",
- "web-sys",
- "winreg",
-]
-
 [[package]]
 name = "rustc-demangle"
 version = "0.1.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4c691c0e608126e00913e33f0ccf3727d5fc84573623b8d65b2df340b5201783"
 
-[[package]]
-name = "ryu"
-version = "1.0.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e"
-
-[[package]]
-name = "schannel"
-version = "0.1.19"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f05ba609c234e60bee0d547fe94a4c7e9da733d1c962cf6e59efa4cd9c8bc75"
-dependencies = [
- "lazy_static",
- "winapi 0.3.9",
-]
-
-[[package]]
-name = "security-framework"
-version = "0.4.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "64808902d7d99f78eaddd2b4e2509713babc3dc3c85ad6f4c447680f3c01e535"
-dependencies = [
- "bitflags",
- "core-foundation",
- "core-foundation-sys",
- "libc",
- "security-framework-sys",
-]
-
-[[package]]
-name = "security-framework-sys"
-version = "0.4.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "17bf11d99252f512695eb468de5516e5cf75455521e69dfe343f3b74e4748405"
-dependencies = [
- "core-foundation-sys",
- "libc",
-]
-
 [[package]]
 name = "serde"
 version = "1.0.116"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "96fe57af81d28386a513cbc6858332abc6117cfdb5999647c6444b8f43a370a5"
 
-[[package]]
-name = "serde_json"
-version = "1.0.57"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "164eacbdb13512ec2745fb09d51fd5b22b0d65ed294a1dcf7285a360c80a675c"
-dependencies = [
- "itoa",
- "ryu",
- "serde",
-]
-
-[[package]]
-name = "serde_urlencoded"
-version = "0.6.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ec5d77e2d4c73717816afac02670d5c4f534ea95ed430442cad02e7a6e32c97"
-dependencies = [
- "dtoa",
- "itoa",
- "serde",
- "url",
-]
-
 [[package]]
 name = "slab"
 version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
 
-[[package]]
-name = "socket2"
-version = "0.3.15"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1fa70dc5c8104ec096f4fe7ede7a221d35ae13dcd19ba1ad9a81d2cab9a1c44"
-dependencies = [
- "cfg-if",
- "libc",
- "redox_syscall",
- "winapi 0.3.9",
-]
-
 [[package]]
 name = "strum"
 version = "0.18.0"
@@ -1405,20 +890,6 @@ dependencies = [
  "version-compare",
 ]
 
-[[package]]
-name = "tempfile"
-version = "3.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
-dependencies = [
- "cfg-if",
- "libc",
- "rand",
- "redox_syscall",
- "remove_dir_all",
- "winapi 0.3.9",
-]
-
 [[package]]
 name = "thiserror"
 version = "1.0.20"
@@ -1448,65 +919,6 @@ dependencies = [
  "lazy_static",
 ]
 
-[[package]]
-name = "time"
-version = "0.1.44"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6db9e6914ab8b1ae1c260a4ae7a49b6c5611b40328a735b21862567685e73255"
-dependencies = [
- "libc",
- "wasi 0.10.0+wasi-snapshot-preview1",
- "winapi 0.3.9",
-]
-
-[[package]]
-name = "tinyvec"
-version = "0.3.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "238ce071d267c5710f9d31451efec16c5ee22de34df17cc05e56cbc92e967117"
-
-[[package]]
-name = "tokio"
-version = "0.2.22"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d34ca54d84bf2b5b4d7d31e901a8464f7b60ac145a284fba25ceb801f2ddccd"
-dependencies = [
- "bytes",
- "fnv",
- "futures-core",
- "iovec",
- "lazy_static",
- "memchr",
- "mio",
- "num_cpus",
- "pin-project-lite",
- "slab",
-]
-
-[[package]]
-name = "tokio-tls"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a70f4fcd7b3b24fb194f837560168208f669ca8cb70d0c4b862944452396343"
-dependencies = [
- "native-tls",
- "tokio",
-]
-
-[[package]]
-name = "tokio-util"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "be8242891f2b6cbef26a2d7e8605133c2c554cd35b3e4948ea892d6d68436499"
-dependencies = [
- "bytes",
- "futures-core",
- "futures-sink",
- "log",
- "pin-project-lite",
- "tokio",
-]
-
 [[package]]
 name = "toml"
 version = "0.5.6"
@@ -1516,38 +928,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "tower-service"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e987b6bf443f4b5b3b6f38704195592cca41c5bb7aedd3c3693c7081f8289860"
-
-[[package]]
-name = "tracing"
-version = "0.1.19"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6d79ca061b032d6ce30c660fded31189ca0b9922bf483cd70759f13a2d86786c"
-dependencies = [
- "cfg-if",
- "log",
- "tracing-core",
-]
-
-[[package]]
-name = "tracing-core"
-version = "0.1.16"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5bcf46c1f1f06aeea2d6b81f3c863d0930a596c86ad1920d4e5bad6dd1d7119a"
-dependencies = [
- "lazy_static",
-]
-
-[[package]]
-name = "try-lock"
-version = "0.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "59547bce71d9c38b83d9c0e92b6066c4253371f15005def0c30d9657f50c7642"
-
 [[package]]
 name = "try_match"
 version = "0.2.2"
@@ -1571,33 +951,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "unicase"
-version = "2.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "50f37be617794602aabbeee0be4f259dc1778fabe05e2d67ee8f79326d5cb4f6"
-dependencies = [
- "version_check 0.9.2",
-]
-
-[[package]]
-name = "unicode-bidi"
-version = "0.3.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"
-dependencies = [
- "matches",
-]
-
-[[package]]
-name = "unicode-normalization"
-version = "0.1.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6fb19cf769fa8c6a80a162df694621ebeb4dafb606470b2b2fce0be40a98a977"
-dependencies = [
- "tinyvec",
-]
-
 [[package]]
 name = "unicode-segmentation"
 version = "1.6.0"
@@ -1610,17 +963,6 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
 
-[[package]]
-name = "url"
-version = "2.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "829d4a8476c35c9bf0bbce5a3b23f4106f79728039b726d292bb93bc106787cb"
-dependencies = [
- "idna",
- "matches",
- "percent-encoding",
-]
-
 [[package]]
 name = "uuid"
 version = "0.8.1"
@@ -1630,12 +972,6 @@ dependencies = [
  "rand",
 ]
 
-[[package]]
-name = "vcpkg"
-version = "0.2.10"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6454029bf181f092ad1b853286f23e2c507d8e8194d01d92da4a55c274a5508c"
-
 [[package]]
 name = "version-compare"
 version = "0.0.10"
@@ -1654,155 +990,8 @@ version = "0.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
 
-[[package]]
-name = "want"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ce8a968cb1cd110d136ff8b819a556d6fb6d919363c61534f6860c7eb172ba0"
-dependencies = [
- "log",
- "try-lock",
-]
-
 [[package]]
 name = "wasi"
 version = "0.9.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
-
-[[package]]
-name = "wasi"
-version = "0.10.0+wasi-snapshot-preview1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
-
-[[package]]
-name = "wasm-bindgen"
-version = "0.2.68"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ac64ead5ea5f05873d7c12b545865ca2b8d28adfc50a49b84770a3a97265d42"
-dependencies = [
- "cfg-if",
- "serde",
- "serde_json",
- "wasm-bindgen-macro",
-]
-
-[[package]]
-name = "wasm-bindgen-backend"
-version = "0.2.68"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f22b422e2a757c35a73774860af8e112bff612ce6cb604224e8e47641a9e4f68"
-dependencies = [
- "bumpalo",
- "lazy_static",
- "log",
- "proc-macro2",
- "quote",
- "syn",
- "wasm-bindgen-shared",
-]
-
-[[package]]
-name = "wasm-bindgen-futures"
-version = "0.4.18"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7866cab0aa01de1edf8b5d7936938a7e397ee50ce24119aef3e1eaa3b6171da"
-dependencies = [
- "cfg-if",
- "js-sys",
- "wasm-bindgen",
- "web-sys",
-]
-
-[[package]]
-name = "wasm-bindgen-macro"
-version = "0.2.68"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6b13312a745c08c469f0b292dd2fcd6411dba5f7160f593da6ef69b64e407038"
-dependencies = [
- "quote",
- "wasm-bindgen-macro-support",
-]
-
-[[package]]
-name = "wasm-bindgen-macro-support"
-version = "0.2.68"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f249f06ef7ee334cc3b8ff031bfc11ec99d00f34d86da7498396dc1e3b1498fe"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
- "wasm-bindgen-backend",
- "wasm-bindgen-shared",
-]
-
-[[package]]
-name = "wasm-bindgen-shared"
-version = "0.2.68"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d649a3145108d7d3fbcde896a468d1bd636791823c9921135218ad89be08307"
-
-[[package]]
-name = "web-sys"
-version = "0.3.45"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4bf6ef87ad7ae8008e15a355ce696bed26012b7caa21605188cfd8214ab51e2d"
-dependencies = [
- "js-sys",
- "wasm-bindgen",
-]
-
-[[package]]
-name = "winapi"
-version = "0.2.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
-
-[[package]]
-name = "winapi"
-version = "0.3.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
-dependencies = [
- "winapi-i686-pc-windows-gnu",
- "winapi-x86_64-pc-windows-gnu",
-]
-
-[[package]]
-name = "winapi-build"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
-
-[[package]]
-name = "winapi-i686-pc-windows-gnu"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
-
-[[package]]
-name = "winapi-x86_64-pc-windows-gnu"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
-
-[[package]]
-name = "winreg"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0120db82e8a1e0b9fb3345a539c478767c0048d842860994d96113d5b667bd69"
-dependencies = [
- "winapi 0.3.9",
-]
-
-[[package]]
-name = "ws2_32-sys"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
-dependencies = [
- "winapi 0.2.8",
- "winapi-build",
-]
diff --git a/Cargo.toml b/Cargo.toml
index cc7bf6c..e809d6d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,8 +11,10 @@ gtk = { version = "0.9", features = [ "v3_16" ] }
 gdk = { version = "", features = ["v3_16"] }
 gio = { version = "", features = ["v2_44"] }
 
+regex = "1"
 
-hocon = { version = "0.3", features = [ "serde-support" ]}
+
+hocon = { version = "0.3", default-features = false, features = [ "serde-support" ]}
 
 try_match = "0.2.2"
 
@@ -20,8 +22,3 @@ anyhow = "1.0"
 #thiserror = "1.0"
 
 
-[target.x86_64-unknown-linux-gnu]
-rustflags = [
-    "-C", "link-arg=-fuse-ld=lld",
-]
-
diff --git a/src/config/mod.rs b/src/config/mod.rs
index ec7bda2..3bfe970 100644
--- a/src/config/mod.rs
+++ b/src/config/mod.rs
@@ -1,11 +1,14 @@
 use anyhow::*;
 use hocon::*;
 use hocon_ext::HoconExt;
-use std::collections::HashMap;
+use std::{collections::HashMap, convert::TryFrom};
 use try_match::try_match;
 
 pub mod hocon_ext;
 
+#[derive(Debug, PartialEq, Eq)]
+pub struct AttrValue(pub String);
+
 #[derive(Debug, PartialEq)]
 pub struct WidgetDefinition {
     pub name: String,
@@ -22,8 +25,7 @@ pub enum ElementUse {
 pub struct WidgetUse {
     pub name: String,
     pub children: Vec<ElementUse>,
-    pub num_attrs: HashMap<String, f64>,
-    pub str_attrs: HashMap<String, String>,
+    pub attrs: HashMap<String, AttrValue>,
 }
 
 impl WidgetUse {
@@ -31,8 +33,7 @@ impl WidgetUse {
         WidgetUse {
             name,
             children,
-            num_attrs: HashMap::new(),
-            str_attrs: HashMap::new(),
+            attrs: HashMap::new(),
         }
     }
 }
@@ -85,25 +86,18 @@ pub fn parse_widget_use(data: HashMap<String, Hocon>) -> Result<WidgetUse> {
         )),
     }?;
 
-    let str_attrs: HashMap<String, String> = widget_config
+    let attrs: HashMap<String, AttrValue> = widget_config
         .into_iter()
         .filter_map(|(key, value)| {
             Some((
                 key.clone(),
-                try_match!(Hocon::String(x) = value).ok()?.clone(),
-            ))
-        })
-        .collect();
-
-    let num_attrs: HashMap<String, f64> = widget_config
-        .iter()
-        .filter_map(|(key, value)| {
-            Some((
-                key.to_string(),
-                try_match!(Hocon::Integer(x) = value)
-                    .map(|&x| x as f64)
-                    .or_else(|_| try_match!(Hocon::Real(x) = value).map(|&x| x as f64))
-                    .ok()?,
+                match value {
+                    Hocon::String(s) => AttrValue(s.to_string()),
+                    Hocon::Integer(n) => AttrValue(format!("{}", n)),
+                    Hocon::Real(n) => AttrValue(format!("{}", n)),
+                    Hocon::Boolean(b) => AttrValue(format!("{}", b)),
+                    _ => return None,
+                },
             ))
         })
         .collect();
@@ -111,8 +105,7 @@ pub fn parse_widget_use(data: HashMap<String, Hocon>) -> Result<WidgetUse> {
     Ok(WidgetUse {
         name: widget_name.to_string(),
         children,
-        str_attrs,
-        num_attrs,
+        attrs,
     })
 }
 
@@ -150,6 +143,7 @@ mod test {
             name: "example_widget".to_string(),
             structure: ElementUse::Widget(WidgetUse {
                 name: "layout_horizontal".to_string(),
+                attrs: HashMap::new(),
                 children: vec![
                     ElementUse::Widget(WidgetUse::new(
                         "text".to_string(),
diff --git a/src/main.rs b/src/main.rs
index 793adf1..e4ff820 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,11 +1,14 @@
+#![feature(try_blocks)]
 extern crate gio;
 extern crate gtk;
 
-use anyhow::*;
+use anyhow::{self, Context, Result};
 use gdk::*;
 use gio::prelude::*;
 use gtk::prelude::*;
 use gtk::{Adjustment, Application, ApplicationWindow, Button, Scale};
+use regex::Regex;
+use std::{collections::HashMap, str::FromStr};
 
 pub mod config;
 pub mod widgets;
@@ -20,6 +23,7 @@ fn main() -> Result<()> {
         window.set_wmclass("noswallow", "noswallow");
         window.set_type_hint(gdk::WindowTypeHint::Dock);
         window.set_position(gtk::WindowPosition::Center);
+        window.set_keep_above(true);
 
         let element = config::parse_element_use(
             config::parse_hocon(
@@ -37,7 +41,10 @@ fn main() -> Result<()> {
             .unwrap(),
         )
         .unwrap();
-        window.add(&element_to_gtk_widget(&element).unwrap());
+
+        let widget_state = WidgetState(HashMap::new());
+
+        window.add(&element_to_gtk_widget(&widget_state, &element).unwrap());
 
         window.show_all();
     });
@@ -46,16 +53,21 @@ fn main() -> Result<()> {
     Ok(())
 }
 
-fn element_to_gtk_widget(element: &config::ElementUse) -> Option<gtk::Widget> {
+fn element_to_gtk_widget(
+    widget_state: &WidgetState,
+    element: &config::ElementUse,
+) -> Option<gtk::Widget> {
     match element {
         config::ElementUse::Text(text) => Some(gtk::Label::new(Some(&text)).upcast()),
-        config::ElementUse::Widget(widget) => {
-            widget_use_to_gtk_container(&widget).or(widget_use_to_gtk_widget(&widget))
-        }
+        config::ElementUse::Widget(widget) => widget_use_to_gtk_container(widget_state, &widget)
+            .or(widget_use_to_gtk_widget(widget_state, &widget)),
     }
 }
 
-fn widget_use_to_gtk_container(widget: &config::WidgetUse) -> Option<gtk::Widget> {
+fn widget_use_to_gtk_container(
+    widget_state: &WidgetState,
+    widget: &config::WidgetUse,
+) -> Option<gtk::Widget> {
     let container_widget: gtk::Container = match widget.name.as_str() {
         "layout_horizontal" => gtk::Box::new(gtk::Orientation::Horizontal, 0).upcast(),
         "button" => gtk::Button::new().upcast(),
@@ -63,20 +75,73 @@ fn widget_use_to_gtk_container(widget: &config::WidgetUse) -> Option<gtk::Widget
     };
 
     for child in &widget.children {
-        container_widget.add(&element_to_gtk_widget(child)?);
+        container_widget.add(&element_to_gtk_widget(widget_state, child)?);
     }
     Some(container_widget.upcast())
 }
 
-fn widget_use_to_gtk_widget(widget: &config::WidgetUse) -> Option<gtk::Widget> {
+fn widget_use_to_gtk_widget(
+    widget_state: &WidgetState,
+    widget: &config::WidgetUse,
+) -> Option<gtk::Widget> {
     let new_widget: gtk::Widget = match widget.name.as_str() {
-        "slider" => gtk::Scale::new(
-            gtk::Orientation::Horizontal,
-            Some(&gtk::Adjustment::new(50.0, 0.0, 100.0, 1.0, 1.0, 1.0)),
-        )
-        .upcast(),
+        "slider" => {
+            let slider_value: f64 = widget_state.resolve(widget.attrs.get("value")?)?;
+
+            gtk::Scale::new(
+                gtk::Orientation::Horizontal,
+                Some(&gtk::Adjustment::new(
+                    slider_value,
+                    0.0,
+                    100.0,
+                    1.0,
+                    1.0,
+                    1.0,
+                )),
+            )
+            .upcast()
+        }
 
         _ => return None,
     };
     Some(new_widget)
 }
+
+struct WidgetState(HashMap<String, config::AttrValue>);
+
+impl WidgetState {
+    pub fn resolve<T>(&self, value: &config::AttrValue) -> Option<String>
+    where
+        T: FromStr,
+    {
+        let var_pattern: Regex = Regex::new(r"\$\$\{(.*)\}").unwrap();
+        let config::AttrValue(value) = value;
+
+        let mut missing_var: Option<String> = None;
+        var_pattern.replace_all(value, |caps: &regex::Captures| {
+            self.lookup_full::<T>(&caps[1]).unwrap_or_else(|| {
+                missing_var = Some(caps[1].to_string());
+                "missing".to_string()
+            })
+        });
+
+        // TODO REEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEe
+
+        unimplemented!();
+    }
+
+    pub fn lookup_full<T>(&self, key: &str) -> Option<String>
+    where
+        T: FromStr,
+    {
+        self.resolve::<T>(self.0.get(key)?)
+    }
+}
+
+// macro_rules! build {
+//     ($var_name:ident = $value:expr ; $code:block) => {{
+//         let mut $var_name = $value;
+//         $code;
+//         $var_name
+//     }};
+// }